1262:] I can't tell if SC2 uses Elo, but it very clearly doesn't matter whether Elo or TrueSkill is used to calculate ratings, because there are many other things going on. It seems to me that SC2 uses a modified TrueSkill system that only accounts for limited game histories, but then has other mechanics going on as well such as a second "hidden" rating (with a much larger K value), and with bonus pool points (described in the blog) that would help to obfuscate the actual workings. Given all of this, it seems like it may be preferable to simply not list Starcraft 2 on this page, because until Blizzard makes transparent how their system works, claiming that it is backed in Elo vs TrueSkill is clearly speculation.
1170:
points against the lower ELO guy (see this same site). So if that inflation is an inaccurate of the system and the borders was wrongly expanded, now a 200 points gap means less "level" gap than before. So, to refuse or proof that inaccurate expanded of the borders, you just need to compare older and newer results between guys with 200 points ELO gap and then can stablish: 1-If actual results between 200 ELO points gap guys are more tie than in the pass, then that inflation exists. 2-If actual results between 200 ELO points gap guys are the same than in the pass, then that inflation is a lie.
1857:= 1, in x = 2.17 equals to 98.500%. This is the first value in the 99% category. The corresponding rating in Fide table 8.1b is 620. Therefore the standard deviation employed in the table equals to 620 / 2.17 = 2000 / 7. The Elo table contains a few irregularities. A more accurate expectation of 620 equals to 98.4997%, which falls into the 98% range. The table assigns 344 to expectation 88%. However the expectation due to the normal distribution is 88.5705%, which is clearly in the 89%. Needed are references to the construction of this table in order to explain the underlying calculation. (
1406:. That's why I said "till reading this article." I'm just wondering how common of a mistake this is. (Is it common enough to make a point of contradicting it in the article?) Also, why do organizations write it in all caps since it's not an initialism? (Note that an acronym is an initialism which is also pronounced as a word. I think those who think it stands for something are probably saying E-L-O as three seperate letters, not treating it like an acronym.)
117:
In such a tournament, the colleges are the players, and each co-admitted student becomes a pairwise "match". The decision of the co-admitted student creates a win for one school and a loss for the other. Iterate through all pairs of colleges that are 'joined' by a co-admitted student, and this is how our rankings are determined. By using this framework, the system is directly analogous to the chess tournament system in which Elo points are classically used.
31:
3954:
5518:"It was with this thought in mind that the writer in 1959 undertook to examine the logic and rationale of the rating systems then in use and to develop a system based on statistical and probability theory. Quite independently and almost at the same time, György Karoly and Roger Cook developed a system based on the same principles for the New South Wales Chess Association (Cook and Hooper 1969)."
690:(which I don't have on hand at the moment but will check as soon as I do) under the entries of "grading" or "rating" (can't remember, sorry). However, I feel the "easy counterexample" is also flawed, because plain win percentage does not take into account the strength of the opposition. Beating up novice players and scoring 90% against them is a lesser achievement than being invited to
3572:
1353:
83:. My obvious COI prevents me from adding this to the article, but I thought I'd put it here in the discussion section in case there is interest. (This approach to college rankings has been undertaken once before in an academic paper by Avery, Glickman, Hoxby, and Metrick; theirs was a one-time study with 1999 admissions data.)
4473:). That said, if you could find a reliable source that says this is indeed a common occurrence and it should be considered an error, then that would be worth including. Otherwise, while "is not" is indeed at least better than "should not", I find the whole sentence redundant and unsuitable for this encyclopedia.
4535:
There is no relationship between strength and rating increase. Elo rating is differential. So if FIDE decides to lower the Elo rating of all its members in the pool by 100, the scoring probabilities between players remain the same. As more rating points are added, the average rating per player in the
2931:
The same IP had made some edits the previous day some of which were reverted as clear vandalism. The citation given points to an archived web page that talks about research into social cognition with no apparent tie to ELO or rating systems. A search for the title given of "Theoretical intangibles of
1129:
1/10,000 times he would lose due to an absurd blunder on his part (known to happen to the strongest), and the other player playing the game of his life. Alternatively, he could draw twice in 10,000 games, which might in fact be more likely. This should be reflected in the rating system, ie. he gets a
1119:
To call it "just a fluke" is to hugely misunderstand the statistical ideas of Elo and of chess. Carlsen should beat anyone that's 1200 or lower 9,999/10,000 times, provided he was taking each game seriously - I am not coming up with this 10,000 number as a random guess, every 400 points in difference
1105:
I read that the idea behind it is if the ratings are close to accurate, beating someone more than 400 higher is a fluke, and shouldn't be weighted too heavily. Also the lower-rated player has practically nothing to lose and a lot to gain, rating wise. And you learn by playing a higher-rated player.
963:
which describes the rather complex FIDE rules. Apparently nine games against FIDE rated opponents are needed. For a tournament result to count for a new rating, at least three games against FIDE rated opponents are required, and at least half a point must be scored against them (one point is required
494:
Class B and higher is generally considered extremely competitive and the USCF establishes a rating floor of each player's peak rating minus 200 rating points. For instance, once someone has reached a rating of 1400, they can never fall below 1200 for rating and competition purposes though there isn't
2627:
player is 1579. These absolute numbers are meaningless. It is about the rating differences at the same point in time, and in the same rating pool. From the record chess rating list, we can derive that
Carlson is 31 rating points stronger then Caruana, which gives him, according to the Fide table, an
2114:
I see that there are (at least) two fundamentally different implementations of the Elo rating system: one based on normal distribution and one based on the logistic distribution. The math details section does not describe which one it is using (the logistic distribution) clearly nor remain cognizant
1324:
The lead-in of this article is not particularly useful. I came looking for a brief overview of what the Elo system is and how it works, instead I get some biographical information, talk about how different organisations use different types of calculations and something about the maths behind it - no
1165:
Talk about the "inflation" of just the ELOs of the best players! I understood as inflation a grow of the mean, not a grow of the best ELOs. The grow of the best ELOs is, in my point of view, a too logical consecuence of two things: 1-There are more players now than before so it is more possible that
324:
Hmm, intuitively you would expect
Harvard and Yale to be grandmasters, not a low expert and low A player, respectively. But of course, largely for reasons of economics, fancy schools often "lose" to lower-rated but much less expensive state schools. I expect that is why the rating field is as "flat"
2951:
The page assumes that the use of the logistic function in Elo's formula is obvious but it really isn't. Indeed its straightforward to show that Elo's assumption that the performance is normally distributed means that ratings should follow a cumulative normal distribution. The logistic function is a
2435:
Intended is the following: any two photo's A and B are compared three times. For example photograph A gets Keep, Throw, Throw. Then photograph B receives Throw, Keep, Keep. Assuming Keep = 1, and Throw = 0, photo B beats photo A by 2 to 1. After a "sufficient" number of comparisons, the total score
1611:
has consulted him on this subject. I also think that FIDE is currently either experimenting with or perhaps has made a change in the K-value used in chess ratings. I'm sure there are people here more geeked up on the details of the rating system who can provide details. If sources are available,
355:
Very interesting observation. A few more details: 1500 is our initialization score, and K is fixed at 24 (no introductory period currently and no variable K). It is possible that not enough tournaments have been played for the schools to depart as significantly from 1500 as they merit. If the upper
116:
Hmm, sorry about the link; I haven't set up a cache for the page yet, so the build time can be slow (2+ seconds). I'll post a partial list w/ Elo points below. The tournament structure is this: each college plays a head-to-head competition with every other college that shares a co-admitted student.
2183:
As someone who reads the one-star reviews first to get the real story on a movie, book, product, or place, I can't say I agree with
Knowledge's view on the value of criticism if they would rather hide it in the content of the article. Nor do I agree that a section on criticism cannot be neutrally
1769:
since the term "Condorcet method" simply doesn't apply to rating systems. Also I should mention that even if Alice beats everyone else in the system there is no theoretical guarantee that she would top the rating list. If Bob loses only one game, to Alice, but remains a much more active player who
1373:
Am I the only one who's pronounced it "E.L.O. rating" for a long time? I always thought it was an initialism till reading this article. Searching google, I see about every 3rd to 5th result has it in all caps as if it's an initialism. I swear I've heard people in chess pronouncing it that way too.
1169:
In anyway, exists a simple method to determine if this inflation exists as an inaccurate of the system or just cause really the actual level of the best is best than before: By construction, the ELO system just says that a gap of 200 points in ELO means that the better ELO guy takes the 75% of the
575:
I think that ICC is mentioned in the article more times than it would appear necessary (compare how many times its closer competitors, Yahoo Chess, Playchess and FICS are mentioned). This also gives the impression that ICC is some sort of reference while in fact there are other chess servers with
499:
However, class B does not start until a rating of 1600 points. Either this statement is supposed to read "Class C and higher" or the points used in the example are off by 200 and it should read "reached a rating of 1600, they can never fall below 1400." I do not know what the case is, because I do
5496:
is something I found that explains his significance. It would be better to cite something that looks more like a reliable source. Since this quotes the introduction to Elo's report to FIDE, it would be preferable to cite that report, if one can dig it up; or do you have another source in mind?
4379:
It is a widespread error, both in chess literature and non-chess literature, to use "ELO" instead of "Elo" to refer to these rating systems. It is natural for someone to look in
Knowledge to check whether or not it's an "initialism" (I would normally call them acronyms, but whatever). The fully
3005:
Elo chooses the
Gaussian distribution "after extensive investigation". Elo did consider other distributions: Verhulst, Perks, rectangular and lineair, binomial and Maxwell Bolzmann. As the Elo system is self-correcting, the actual distribution is not that important, as long as the distribution is
1130:
large amount of points if he wins, and
Carlsen would get 1/10,000 of that for every win he gets. - And remember that 10,000 games is one HELL of a lot of games, people don't play that amount of FIDE games in their entire career, even 100 games is more than you might think, so yes it could happen.
4515:
FIDE title regulations don't mention tournament categories any more. Already in the 2010 regulations, it was noted that categories had been deprecated: "Category was used for title results earlier. Now it is used only to describe the overall strength of a round-robin tournament." In the 2014,
4055:
gives "FIDE Rating List" back to 1967, but I think it is more correct to say it was an Elo list. There are then lists in 1968, 1969, 1970, two in 1971, then one each in 1972-74. I suspect the July 1971 one is the first official FIDE list. Whatever the case is, the article should make this clear.
2741:
where ratings are updated immediately after each game. However, for ratings that matter this is generally a non-issue. For the non-commutative part to hold in the FIDE system the games between the players would have to be in different months. Also, since tournaments are not rated before they are
4026:
The article lists a bunch of games that use the Elo rating system, but it does not mention
Rainbow Six: Siege, which is more popular than all of the other games listed, with CS:GO and Overwatch being exceptions. The two following links explain Elo in R6. I gave the information, now we just need
2720:
being a blog). Just a comment about the FIDE regulation: even if the rating update is commutative within a period, it would still not be commutative between 2 different periods. Also 24 hours is not much time, especially several
Wikimania deadlines fell yesterday. Anyway, remove it if you must.
1082:
400 of difference) exponentially less and less significant. Wouldn't that discourage players from competing against much stronger players? In the sense that a reasonable player would never compete against a player with more than 400 of difference, if he has a choice of competing against another
814:
Performance can't be measured absolutely; it can only be inferred from results against other players. Both the average and the spread of ratings can be arbitrarily chosen. Elo suggested scaling ratings so that a difference of 200 rating points in chess would mean that the stronger player has an
404:
Yes, I was going to point out some factors, one was the average rating and K factor chosen, as you said. Other factors: the larger the number of players the greater chance that some will be very far above average; and students make choices based on criteria other than the quality of the school
763:
is not in there. I believe that what it means is that you could for example add 5000 points to everybody's rating, without changing anything, but that idea is already covered in the next sentence, that the range and average are arbitrary. The (minor) quibble I have is that the rating range is,
3461:
The Elo rating system is not and was never used in Couner-Strike: Global
Offensive. It's rating System is based on a modified Glicko-2 rating system. Source: Official statement from Vitaliy from Valve. "The CS:GO competitive ranking system started with ideas based on Glicko-2 rating model and
1447:
I no like the photo. I'll like there to be real Chess position, where the figures are exactly in the centre of squares. The Chess figures do not made the game, but the combination of figures and rules. This design where the figures are placed like in 'still life' art by some artist give wrong
2199:"Hide it"? That is a misunderstanding of what a neutral point of view entails. The article should neither criticize nor advocate; rather, it should summarize what has been said about the subject. Naturally that includes the spectrum of extant material, whether complimentary or critical. --
4122:
Electric Light
Orchestra ratings have stabilized because the rate of increase in human playing strength has slowed down in the last 10 years or so. Ken Regan's 2011 study concluded that rating inflation is not a thing; the increase in the number of grandmasters and the number of :
3949:{\displaystyle E_{A}={\frac {Q_{A}}{Q_{A}+Q_{B}}}={\frac {10^{R_{A}/400}}{10^{R_{A}/400}+10^{R_{B}/400}}}={\frac {{\frac {1}{10^{R_{A}/400}}}\cdot 10^{R_{A}/400}}{{\frac {1}{10^{R_{A}/400}}}\cdot \left(10^{R_{A}/400}+10^{R_{B}/400}\right)}}={\frac {1}{1+10^{(R_{B}-R_{A})/400}}}}
2144:
Didn't this page previously have a section on criticism of the Elo rating system? And if not, shouldn't it have one? I seem to remember reading a whole paragraph discussing the problems with Elo's assumptions and how none of them were accurate, throwing the whole system into
733:
If this is true, then if you see only a single rating in your entire lifetime, you should have no idea what it means. However, I can take the ELO ratings of everyone and give everyone a percentile. Then I can give you the percentile of Carlsen, and you will know he is a good
126:
One interesting aspect of this approach is that, given knowledge of the Elo points of two different schools, one can perform a simple transformation to extract the relative matriculation likelihood. In other words, you can see the relative yield for students admitted to both
4547:
The graph shows the expectation of the champion's rating from the FIDE rating list, compared to the ratings of the following 19 players. Robert Fischer's superiority is undeniable. The line represents the average rating development. The rating inflation since 1985 is clear.
4184:
The opening paragraph while listing examples of sports that use the Elo system, while many of the games listed don't actually use Elo, instead using a modified or derivative system. Should this language perhaps be changed to "Elo and derivatives of Elo are also used in..."?
2184:
presented. (So-and-so says this is a load of hogwash, but So-and-so lost a great deal of prestige in the community as a result of these studies, so he may be biased.) But it's not worth the effort to try to convince Knowledge's editors that mine is the right opinion.
5030:
The K-factor determines how we weigh past and present. A low K gives more weight to past performances. (Elo, 1978, p. 25). In the following example we show the effect of the K-factor on the rating development in more detail. The K factor in this example is set to 32.
1725:
Because the number of games played by each player effects the gain and loss of each, points are not strictly transfered from one player to another. A new number is created for each player, though it has the mystical quality of being approximately zero sum.
4516:
2017, and 2022 regulations, they aren't mentioned at all. I am not sure we should even mention them in this article (will think about that). If we do, we should mention that they are no longer described in the FIDE regulations and are not used.
1659:
I have just noticed that this article uses "ratings inflation" instead of "rating inflation". Google tells me that the former is used more than the latter, and I have seen both spellings used in respectable sources. Are both grammatically correct?
98:
I couldn't access the website. The ELO system is designed for when there is a head-to-head competition between two people or whatever. How does this fit in? Do you go by the number of students that choose college A over B or something?
5608:
Chess Life, March 5 & April 5, 1960 Chess Life, June 1961. pp. 160-1 A. E. Elo; Analytical Reports, 1961, 1963 & 1965, (Privately Printed) A. E. Elo; Historical Rating List, Chess Life April 1964 Chess Life, July & August 1967
4259:
is completely redundant because, if something is not an initialism, it goes without saying that it shouldn't be written or pronounced like one, especially when the article already uses the word and describes how it's pronounced. And yes,
3566:
It requires a bit of work to pass from the first formula to this second (this one above is more handy). This because at first one can be puzzled that the denominator cannot be broken immediately. So just to avoid trying I leave it here.
4142:
The Regan/Haworth study more or less punctures the balloon of rating inflation, and so most of the section, "Rating inflation and deflation", must be at least rewritten, if not discarded altogether. Here is a reference for that study:
1208:
The article talks a lot about deflation, but not about the causes. The cause(s) of deflation are fundamental to the discussion and should be included, even if to say nothing else than the causes are not known (if that is the case). -
4589:
Much of the inflation/deflation discussion misses the point: that the average rating level is the result of management (or lack thereof) by the rating authority. It would be very helpful if FIDE published statistics on the rating
4375:
It is indeed redundant to say that the word is not an initialism, while also saying that the rating system is named for its creator, Arpad Elo. But it is (I think) OK to say one thing in the article, and a redundant thing in the
2633:
Is Carlson stronger then Fischer? To make an educated guess, we have to consider the rating differences of Fischer and his competitors, and compare that with the rating differences between Carlson and his competitors. IJmuiden,
515:
Nevermind, I just found a page on Mark Glickman's (current chair of the USCF's ratings committee) personal page explaining the USCF's procedure for flooring player's scores. I will edit the relevant section accordingly now.
2658:). I would have thought that this was incorrect, because Elo ratings are updated in a block, month by month. Isn't it true that start-of-the-month ratings (rather than "live" ratings) are used in each month's calculation?
1806:
Elections are a contest that determine a winner based on the popularity of the candidates. The rating system is not a contest, its purpose is to estimate the strength of players based on their results in tournament games.
1166:
talent guys that not player chess with years ago situation, now play. 2-Actual "real" level of the best players is higher than the level of old best players cause the progress of the way to be prepared to the competition.
964:
in the first tournament to "get started"). I know that in Norway you need at least 10 games to obtain an Elo rating, and at least 30 before the rating is established and calculated according to the regular Elo formula.
899:"A player's rating depends on the ratings of his or her opponents, and the results scored against them. The relative difference in rating between two players determines an estimate for the expected score between them."
2742:
completed the games would also have to be in separate tournaments. On the whole I support Adpete's decision since the effect of the non-commutativeness is of very minor consequence in the few cases where it is seen.
722:
Yes, this is true. It is impossible to know exactly how powerful someone is in chess unless they have solved it. This is not relevant to the claims following it though. Perhaps it could be in a paragraph by itself.
1764:
Condorcet methods are a category of voting systems while the Elo rating system is not a voting method or even a contest. A statement like "The Elo rating system is a Condorcet method" would, in my view, qualify as
2932:
the ELO system" doesn't turn up anything either. So far as I can tell this is simply vandalism that got missed initially. Unless someone comes up with some sort of evidence otherwise I'll go ahead and remove it.
2761:. I'm more than happy to have a little bit about it if RSs cover it. If no RSs cover, that means it's a mathematical curiosity which is true (for ratings which are continuously updated), but no one cares about.
1018:
that talks about it in the section about probabilistic models. A reference to the paper by Bradley and Terry is at the end of the article. It's a famous model, and it seems to predate Elo's algorithm (1952).
5041:
The class interval C = 200 is rooted in tradition (Elo, 1978, p. 19). In this example, the past weighs 4 times as much as the present. If K is set to 10 then the ratio between present and past becomes 1 to 15.
2383:
The page states "Three votes are cast for each photograph and an Elo score is determined for all photographs". Does this even make sense? There are only so much variations you can have with three votes and two
566:
should be enough, since to even get to this page you have to say something about rating systems. Does the Electric Light Orchestra page need a link to this one for people who want to know about chess ratings?
4338:
809:
rating range is 100-2900, then you can infer from Carlsen's rating of 2826 that he is a very strong player without looking at anybody else's rating. I wonder if a paragraph like this addresses the problems:
5034:
The new rating (Rn) is approximately equal to the rating performance (Rp) calculated over the games played in the rating period (N = 5) supplemented by (800/K - N) = 20 fictitious draws against own rating.
821:
The main difference to the current text is removing the offending sentence ("only meaning relative to other ratings"). It also replaces "wins, losses, and draws" with "results against other players", since
1566:
697:
I suggest restoring the sentence, but adding a footnote citation on it. It would be appreciated if someone can source it faster than I can. We could also replace "Performance" with "A player's strength".
1587:
Regarding "The chess statistician Jeff Sonas believes that the original K=10 value (for players rated above 2400) is inaccurate in Elo's work" -- is Sonas' opinion well-supported by independent sources?
4540:
737:
It is arguable that because I told you I am using percentiles, you already know the bound on the ratings, thus automatically granting you information on other ratings. Is this a legitimate argument?
2584:
Is there anything useful to be said (in this article) about the range of ratings, in particular the highest rating achieved, for a given game? I see that the record chess rating achieved is 2882 by
1964:
4596:
3561:
641:
I don't know. I've always heard Americans say "Eee Low", but we don't know much about pronouncing foreign names. His name is Élő (Hungarian), but I don't know how to pronounce that properly.
4748:
4884:
2118:
For that matter it doesn't state such simple things as "what are the parameters (variance in the case of the normal distribution, scale in the case of the logistic) used for distribution?"
4002:
Glickman's publications page includes neutral and accurate material that is relevant to an encyclopedic understanding of the subject. Is there some reason that you think that it violates
5575:
At first I was going to suggest that I could change the citations to the original 1978 edition, but looking at Elo's preface to the second edition I think your idea is better. Thanks.
1699:
section with mathematical formulae because I had trouble reading the section because of tight spacing between lines. My first attempt yesterday was okay but unorthodox. Today I found an
5523:
This doesn't agree precisely with chess-poster, although they don't necessarily conflict directly. The Elo bibliography indicates that Cook and Hooper 1969 is Cook, R. and Hooper, F.,
1428:
I don't know how common it is or know of any references for that. I think Elo himself wanted the system to be ELO (caps). It was commonly written that way until relatively recently.
536:
I think League of Legends could also get a mention in the last part, as it is another major online game which uses the ELO rating system. I'll do this myself when time allows, though.
79:
Basically, we assign wins and losses based on the matriculation decisions of admitted students, and we then rank the colleges based on their Elo points. The 2009 ranking list is here:
2164:. In general, it is considered better to note the critical opinions that have been put forward in other, more neutrally worded sections. There is a general discussion on the topic at
4920:
576:
more users (Yahoo and Playchess) or equally respected (FICS, Playchess). A commercial site like this shouldn't have so much prominence in the article without a real justification.
370:
I think the figures are about right. Would only expect a grandmaster rating for about 1 in 1,000,000+ and because there isn't that many schools then it was similiar to expected.
2092:
805:
as there is no theoretically highest or lowest rating (although most systems have implemented rating floors of some sort). But your point is well taken, if you know that the
4952:
4807:
4780:
4670:
4635:
356:
echelon is actually more preferred than we're making it look, it should come out when we have more data (next year's results will come back sometime between May-June 2010).
5561:. I see that the credit to Karolyi and Cook is now on page 4. I think I will convert the citation to use 1986 instead of 1978, and 4 instead of 16, if you don't mind.
4987:
2697:(24 hours later) In the absence of any discussion, I will delete the entire section shortly. The reason being: I see no evidence of commutativity being discussed in any
2654:
The article claims Elo ratings are non-commutative. The only source for this is a single line in a slide presentation (and apparently a graduate student talk, so not a
2928:"A 2012 study led by a team of Swedish psychologists at Lund University has spawned arguments for the inclusion of a fourth concern, albeit theoretical: intangibles."
4380:
literate reader can deduce the right answer from the fact that it's a person's name, but the additional footnote is an attempt to, so to speak, underline the point.
2046:
2019:
815:
expected score (which basically is an expected average score) of approximately 0.75, and the USCF initially aimed for an average club player to have a rating of 1500.
4353:
readers that something is ironic, surprising, unexpected, amusing, coincidental, etc. Simply state the sourced facts and allow readers to draw their own conclusions.
5545:
Thanks for fixing this. There was a problem with the reference name "AEE1986" appearing twice with different contents, so I removed the name from the new citation.
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2867:
2863:
2849:
2528:
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4551:
Magnus Carlsen's rating as of February 2022 is 2865, and the average rating difference with the next 19 players is 102 (64%). Rating inflation have stabilized.
136:
In case there are still pageload issues, here are the top 10 schools using 2009 data (i.e., the data from students who just started attending college this fall):
1325:
actual definition. Find it problematic, but can't correct it myself since I have no knowledge of how Elo works - which is why I came here in the first place! --
671:
Performance can't be measured absolutely; it can only be inferred from wins, losses, and draws. Ratings therefore have meaning only relative to other ratings.
4469:, or that it's a personal name of Hungarian origin and therefore it's not an acronym. It is not our job to correct errors; we simply state verifiable facts (
2168:. If you look in this article on "practical issues" you will find sentences that deal with problems with the rating system, such as inflation and deflation.
847:; it can only be inferred from results against other players". In games such as 100 meter dash, people's performances are largely independent of opponents.
3023:
It is incorrect to write that FIDE still use the Gaussian distribution. FIDE regulations show that they adopted the logistic at least as early as 2014.
2604:
players are ranked around 3500. Does this permit or suggest any conclusions about the difference in the games, or in the level to which they are played?
2589:
681:
the logic is invalid; an easy counterexample is win percentage, which is an absolute rating that has meaning outside of comparison with other ratings.
1877:
The article states that "he maximum possible adjustment per game, called the K-factor, was set at K = 16 for masters and K = 32 for weaker players."
1707:--with a better solution, and I made changes consistent with that MOS section. - Great article btw - I'm a Class D player trying to learn more. ;o)
1450:
For comparison, I adore the 'Go' photo. I don't know to play 'Go', but I see the photo and I know what it is about. The chess photo is misleading.
1568:
If normal distribution and logistic distribution use the same formula, what's the difference between them? I come for more mathematical details. --
1158:
I listened about ELO inflation as some inaccurate of the system but after read about it is not what I spected. The firsts sites appears in Google:
2160:
Criticism sections, while not absolutely forbidden, are generally avoided if we can avoid it since they can make it more difficult to maintain a
1037:
I haven't looked at it closely enough to tell if it is the same method. Bradley & Terry aren't in Elo's book (at least not in the index).
555:
Is there really any likelihood that the "ELO rating system" will be confused with the acronym for the 70's band "Electric Light Orchestra"? --
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It's very late in coming, but I thought your question deserves some response. As far as I know, both expressions are grammatical in English.
438:. IIRC, in Elo's book for his original system he calculates that playing white yields an advantage of almost exactly 50 rating points. The
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plays lots more games and wins against everyone except Alice, his rating will creep up for every win and eventually surpass Alice's rating.
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In the USCF you have to have four games to get a rating. Then it is provisional until you have 25 rated games. I don't know about FIDE.
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I would just add this but I've never done formatting/editing on wikipedia before. I'll have to look up the wiki page for that soon...
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The online competitive game League of Legends also uses the Elo system for their ranked games, although modified to fit their needs:
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When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
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I notice that all the other citations of Elo in this article specify the 1986 edition. I have found a .pdf of that online at
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as it addresses the reader and presupposes writing or pronouncing it like an initialism is something they might plausibly do.
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Hi Adpete, I'm sorry that the section has to go. Though the phenomenon seems obvious to me, I can't find any reliable source (
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is very close to 3.1701, the odds for a rating difference of one class interval in a system based on the normal distribution.
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At the risk of telling you something you already know, Knowledge has a firm policy against publication of original research:
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I think your changes are good. There is a sudden subject shift from the first to the second sentence, but readers can cope.
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For quite a few years, the system was formerly known as the ELO system, even though it was named after professor A. Elo.
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4572:. The chart you have presented above, and your discussion of it, cannot be included in this article, for that reason.
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When exactly did FIDE adopt the Elo system? And were there unofficial lists before that. The reason I ask is this page
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The article should at least mention that most rating systems ignore color, even though it is well known that having
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have some meaning, for instance the rating criterion for being awarded an FM title is placed "absolutely" at 2300.
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agrees that players can only be measured against each other. I have added a couple of sentences which follows the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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We should discuss this rather than revert each other. Toccata, in this case I have to agree with BarrelProof.
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Why there is no mention that this ranking system came from the Japanese Dan-I or Dankyūisei from the game Go?
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I'll try to add a paragraph to the lead giving the general idea. The details are in the body of the article.
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If you want to have a strictly correct sentence, you can say "A player's strength can't be measured absolutely
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This article is about the elo rating system, not chess rating system, its ok to put its origin but thats all.
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5515:(Elo 1978). I didn't remember it, but checking the index I see the book does mention Roger Cook on page 14.
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Isn't the Bradley Terry model the same as the model that Elo adopted. Why is this not mentioned anywhere?
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The following line was added to the Mathematical issues section on January 19, 2013 by an anonymous user:
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And subsequently in chapter 8.46 Percentage Expectancy Table, page 143 the table does have the header:
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is necessary either. No one would think it is after reading "In English, this is usually pronounced as
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If you have a source for that you can add it yourself. Personally I am highly skeptical of your claim.
3186:. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit
3064:. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit
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It is a person's name, but for many years it was always in all caps (ELO), which makes it look like an
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https://www.reddit.com/r/GlobalOffensive/comments/2g3r4c/the_ultimate_guide_to_csgo_ranking/ckfhfir/
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does ELO online scrabble rating hinge on how much one wins/loses by or just whether it's a win/loss?
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https://www.reddit.com/r/chess/comments/v1dn9k/roger_cook_passed_away_actual_inventor_of_the_elo/
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https://web.archive.org/web/20130308190221/http://eprints.soton.ac.uk/272922/1/IJCB%20%283%29.pdf
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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1062:? Also perhaps some discussion on the equation as written in the movie being a bit incorrect.
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Performance can't be measured absolutely; it can only be inferred from wins, losses, and draws.
5010:. If it is appropriate to change "base 10" to "base √10", then that link should not be used.
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at the top of the page is not helpful for this article as it has 46 inline cites. Use inline
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As the expectation curve between -300 and +300 is almost linear with slope 1 on 4C we have:
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Die Berechnung der Turnier-Ergebnisse als ein Maximumproblem der Wahrscheinlichkeitsrechnung
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https://web.archive.org/web/20120618103954/http://archive.uschess.org/ratings/ratedist.php
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not know too much about the USCF ratings system, but this should be fixed at some point.
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where people are mocked for talking about the "Electric Light Orchestra" rating system.
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https://rainbow6.ubisoft.com/siege/en-us/news/152-277344-16/matchmaking-rating-and-ranks
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I hope someone else gives you a more definitive answer, but I think the answer is yes.
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I agree that words along the lines of ironic, surprising, etc., would be inappropriate.
3388:, "External links modified" talk page sections are no longer generated or monitored by
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player with a smaller difference. I'm just wondering if there is a logic behind that.
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If you found an error with any archives or the URLs themselves, you can fix them with
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If you found an error with any archives or the URLs themselves, you can fix them with
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If you found an error with any archives or the URLs themselves, you can fix them with
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https://web.archive.org/web/20131021132001/http://www.sjakk.no/nsf/elosystem_main.html
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If you found an error with any archives or the URLs themselves, you can fix them with
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https://web.archive.org/20131205025157/http://www.sjakk.no:80/NSF/elosystem_index.html
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In the subsection about the USCF ratings system, the following two lines are written:
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decent estimate of that, of course, but there is no mention of Elo's justification.
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If "should not" is unsatisfactory, then would "is not" be an acceptable substitute?
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Thanks, I think we're getting somewhere. :-) Trying to remember the content of the
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See (Elo, 1978), 3.7 Deflation Control Processes, 3.8, Monitoring the Rating Pool.
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This is not an article about chess ratings so I don't see the colour is relevant.
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If you wish to start a new discussion or revive an old one, please do so on the
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1969:
According the formula, the possible adjustment is unbounded. Which is correct?
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3394:. No special action is required regarding these talk page notices, other than
3228:. No special action is required regarding these talk page notices, other than
3108:. No special action is required regarding these talk page notices, other than
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2858:. No special action is required regarding these talk page notices, other than
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2519:. No special action is required regarding these talk page notices, other than
2301:. No special action is required regarding these talk page notices, other than
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It doesn't take a "fully literate" reader to understand that it's pronounced
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Although the deleted sentence was unsourced, I think it was supported by the
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2048:), in a game is 1. The minimum possible score in a single game is 0. Hence,
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https://support.ubi.com/en-us/Faqs/000024743/How-Does-Rank-Work-in-R6-Siege
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https://web.archive.org/web/20090612234152/http://www.enemydown.eu/news/502
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It would be interesting to uncover the reports from 1961, 1963 and 1965.
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someone to add it to the article (I suck at editing articles directly).
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https://web.archive.org/web/20100212133335/http://blog.roblox.com/?p=2032
2973:
Explain exactly how Elo's original formula assumes a normal distribution.
2677:(c) ΣΔR x K = the Rating Change for a given tournament, or Rating period.
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https://web.archive.org/20130308183043/http://www.psy.lu.se/o.o.i.s/15545
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Even if the mention of the name not being not an acronym was warranted,
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after the link to keep me from modifying it. Alternatively, you can add
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after the link to keep me from modifying it. Alternatively, you can add
1788:
How is voting not a rating system? Are they not both in the category of
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https://web.archive.org/web/20080603001814/http://chess.liverating.org/
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you meet is almost as important as the result you score against them.
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Interesting, and that seems to be a valid use of the rating system.
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The "non-commutative" part is correct on online web servers such as
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http://blog.daave.com/2011/06/adventures-with-google-app-engine.html
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2700 players reflects actual improvements in the standard of play.
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Everything is bounded. The maximum number of points you can score (
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It seems like it makes winning against much stronger players (: -->
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I accidentally uploaded the file as my own work. I corrected that.
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to keep me off the page altogether. I made the following changes:
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to keep me off the page altogether. I made the following changes:
5638:"FIDE Online. FIDE Rating Regulations effective from 1 July 2014"
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leads to a factor of 10 in expectancy of scoring against someone.
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It affects individual games but it evens out over the long run.
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903:"Ratings therefore have meaning only relative to other ratings."
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The counterexample of "Performance can't be measured absolutely"
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https://www.fide.com/fide/handbook.html?id=172&view=article
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P(D) = norm.dist(D, 0, 2000 / 7, cumulative), (Elo, 1978, p.28)
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761:"Ratings therefore have meaning only relative to other ratings"
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Ratings therefore have meaning only relative to other ratings.
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then the Verhulst and the logistic take the following forms:
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Proceedings of the AAAI Conference on Artificial Intelligence
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4347:, a Hungarian-American physics professor." As the MoS says,
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When you have finished reviewing my changes, please set the
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When you have finished reviewing my changes, please set the
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When you have finished reviewing my changes, please set the
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1607:
is considered an expert on chess rating, and I believe that
1561:{\displaystyle E_{A}={\frac {1}{1+10^{(R_{B}-R_{A})/400}}}.}
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When the logarithms in equation (38) are taken to the base
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http://www.chesshistory.com/winter/extra/ratingstitles.html
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for additional information. I made the following changes:
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for additional information. I made the following changes:
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for additional information. I made the following changes:
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for additional information. I made the following changes:
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Let N = 5, Ne = 20, N + Ne = 25, K = 4C / 25, R0 = 1613.
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improved over time to better fit the CS:GO player base."
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http://www.uschess.org/ratings/RedmanremembersRichard.pdf
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and the Elo score can be determined in a meaningful way.
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I know it's not "voting", but could this be considered a
81:
http://college.mychances.net/college/college-rankings.php
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The development of the Elo system can be followed here:
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P800(D) = D / 4C + 50%, slope = 1 / 4C, intercept = 50%.
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is unencyclopedic instructional language discouraged in
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I have just added archive links to one external link on
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I have just added archive links to one external link on
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http://na.leagueoflegends.com/learn/gameplay/matchmaking
937:
In chess....how many games are required? Four? Regards,
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Tweaks to improve readability of math formulae section.
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405:(money, distance, the city, friends and family, etc).
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http://eprints.soton.ac.uk/272922/1/IJCB%20%283%29.pdf
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There is only one formula for expected score as this:
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does say that ratings are relative and not absolute.
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It would make sense to change that wording; thanks.
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Explaining a bit more the formula with 'Q' quantities
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1959:{\displaystyle R_{A}^{\prime }=R_{A}+K(S_{A}-E_{A}).}
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The sentence removed earlier went one step further:
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Linear Approximation Formulae ( "algorithm of 400")
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3398:using the archive tool instructions below. Editors
3232:using the archive tool instructions below. Editors
3112:using the archive tool instructions below. Editors
2862:using the archive tool instructions below. Editors
2523:using the archive tool instructions below. Editors
2305:using the archive tool instructions below. Editors
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Effect of number of games played on strict zero sum
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http://www.chessbase.com/newsdetail.asp?newsid=5608
1003:I've never heard of it. Do you have a reference?
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4071:And perhaps even some pre-Elo history, like here:
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3556:{\displaystyle E_{A}={\frac {Q_{A}}{Q_{A}+Q_{B}}}}
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2673:FIDE Rating Regulations effective from 1 July 2014
2427:What would the "Elo score" for the photographs be?
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2013:
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5006:Thanks. There is a link underneath "base 10" to
4343:in Hungarian", or "It is named after its creator
4229:should not be written as "ELO" nor pronounced as
3979:would you please justify your addition of the EL
2110:Discrepancies in the Mathematical Details section
4743:{\displaystyle {P(D)}={\frac {1}{1+10^{-D/2C}}}}
3002:, Mathematische Zeitschrift 29, 1929, S. 436–460
2921:Mathematical Issues from a team of psychologists
2701:, so this article should not discuss it either.
1880:However, the formula for ratings adjustment is:
759:, I think you are right that content supporting
694:and scoring 10% against the elite grandmasters.
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4139:Is this a quotation? If so, where is it from?
3210:http://archive.uschess.org/ratings/ratedist.php
5513:The Rating of Chess Players Past & Present
4879:{\displaystyle {P(D)}={\frac {1}{1+e^{-D/C}}}}
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3384:This message was posted before February 2018.
3218:This message was posted before February 2018.
3098:This message was posted before February 2018.
2848:This message was posted before February 2018.
2509:This message was posted before February 2018.
2291:This message was posted before February 2018.
1276:EVERY MATCHMAKING SYSTEM IN GAMING USES ELO!
4892:In a fortuitous numerical relation, the base
1472:How the normal/logistic distribution effects?
1248:EVERY MATCHMAKING SYSTEM IN GAMING USES ELO!
8:
3080:http://www.sjakk.no/nsf/elosystem_index.html
2757:To me, the issue is whether it's covered in
2683:commutative, within a given ratings period.
2580:Significance of range of ratings for a game?
2275:http://www.sjakk.no/nsf/elosystem_index.html
654:
4461:
4452:
4432:
4426:
4409:
4316:
4310:
4293:
4250:
4241:
4145:Regan, Kenneth; Haworth, Guy (2011-08-04).
3470:I have removed that part from the article.
3074:http://www.sjakk.no/nsf/elosystem_main.html
2820:http://www.sjakk.no/nsf/elosystem_main.html
1640:where needed to point out specific issues.
3296:
3024:
2953:
2784:I have just modified one external link on
2119:
1695:I tweaked some formatting (layout) in the
562:It seems to me that the disambiguation at
145:
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3499:
3344:I have just modified 2 external links on
3178:I have just modified 2 external links on
3056:I have just modified 3 external links on
2590:List_of_chess_players_by_peak_FIDE_rating
2075:
2062:
2053:
2032:
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2005:
1999:
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769:
5044:
1448:inspiration what exactly is Cheese game.
981:
905:The problem is that a rating on its own
610:Why isn’t a pronunciation given? How is
495:a rating floor for those 1200 and below.
436:the first move is a measurable advantage
5629:
5397:= 1617,60 = 1613 + 32(13,000 – 12,8563)
5391:= 1617,33 = 1613 + 32(13,000 – 12,8647)
4597:2001:1C04:5032:CC00:CD9B:1DD8:8CBF:92EB
4022:Elo Rating System in Rainbow Six: Siege
1841:Calculating the Rating Difference table
1612:some of this should go in the article.
4348:
4272:
4261:
4228:
2628:expected score advantage of 53% / 47%.
1873:Discrepancy in description of K-factor
442:system does deal with the problem. --
44:Do not edit the contents of this page.
5433:, calculated over the above 25 games.
4331:
4180:Misleading games in opening paragraph
4118:is there some explanation for this ?
2837:to let others know (documentation at
2600:that top ranked (9 dan professional)
7:
4455:
4429:
4406:
4313:
4290:
4244:
4989:) then we arrive at equation (46).
4915:{\displaystyle {\sqrt {10}}=3.1623}
3457:Elo rating system in Counter strike
2094:is limited to be between -1 and 1.
933:How many games before an Elo rating
4809:seems to be more correct then 10.
4644:, 1978, page 141 we read at 8.43:
4440:and therefore it's not pronounced
2650:non commutative - is that correct?
2493:http://www.psy.lu.se/o.o.i.s/15545
982:Why isn't Bradley-Terry mentioned?
786:
777:
24:
4487:You quite often see threads like
3348:. Please take a moment to review
3182:. Please take a moment to review
3060:. Please take a moment to review
2788:. Please take a moment to review
2463:. Please take a moment to review
2245:. Please take a moment to review
2115:of the fact that there are two.
1160:http://members.shaw.ca/redwards1/
5511:The obvious place to look is in
4442:
4419:
4396:
4303:
4280:
4231:
3200:http://www.enemydown.eu/news/502
1351:
1014:There is a Knowledge article on
897:entry on "rating" very closely:
29:
4888:Elo (1978, page 141) observed:
4758:Logistic Probabilities to base
4048:History section needs more work
3078:Corrected formatting/usage for
3072:Corrected formatting/usage for
4833:
4827:
4694:
4688:
4501:03:26, 30 September 2021 (UTC)
4483:02:35, 30 September 2021 (UTC)
4390:02:25, 30 September 2021 (UTC)
4364:02:06, 30 September 2021 (UTC)
4114:ELO inflation has been stopped
3930:
3904:
3452:23:22, 19 September 2017 (UTC)
3366:http://blog.roblox.com/?p=2032
2994:New York 1924 chess tournament
2983:15:43, 16 September 2016 (UTC)
2081:
2055:
1950:
1924:
1539:
1513:
1219:00:50, 12 September 2011 (UTC)
1176:Luis from Paraná, Argentina.
1152:(Sorry cause my poor english)
789:
771:
1:
5409:= 1615,93 = 1601,600 + 14,330
4106:02:22, 10 February 2020 (UTC)
3331:09:13, 9 September 2017 (UTC)
3286:18:35, 7 September 2017 (UTC)
2916:05:10, 23 December 2016 (UTC)
2087:{\displaystyle (S_{A}-E_{A})}
2021:), and be expected to score (
1836:08:56, 25 November 2014 (UTC)
1364:00:13, 29 December 2011 (UTC)
1345:21:46, 28 December 2011 (UTC)
1335:21:11, 28 December 2011 (UTC)
1272:18:48, 12 December 2011 (UTC)
1243:04:56, 19 December 2011 (UTC)
1140:21:20, 18 November 2011 (UTC)
1042:01:39, 14 February 2011 (UTC)
1029:05:39, 12 February 2011 (UTC)
1008:05:12, 11 February 2011 (UTC)
998:04:36, 11 February 2011 (UTC)
580:Focus of the article is wrong
551:Confusion About The Confusion
75:College ranking by Elo points
4947:{\displaystyle {\sqrt {10}}}
4802:{\displaystyle {\sqrt {10}}}
4785:Based on the above sources,
4775:{\displaystyle {\sqrt {10}}}
4665:{\displaystyle {\sqrt {10}}}
4630:{\displaystyle {\sqrt {10}}}
4526:16:41, 13 January 2022 (UTC)
3090:http://chess.liverating.org/
3018:15:07, 8 November 2016 (UTC)
2942:08:22, 30 January 2017 (UTC)
2644:18:28, 2 February 2016 (UTC)
2614:23:03, 31 January 2016 (UTC)
2408:Photo 5: Throw, Throw, Throw
1867:14:00, 13 January 2015 (UTC)
1847:standard normal distribution
1817:07:27, 27 October 2014 (UTC)
1802:15:53, 19 October 2014 (UTC)
1780:19:57, 11 October 2014 (UTC)
1225:League of Legends Elo usage.
1111:22:34, 4 November 2010 (UTC)
1099:21:23, 4 November 2010 (UTC)
1077:The math behind the 400 rule
480:15:30, 22 October 2009 (UTC)
466:14:11, 22 October 2009 (UTC)
452:09:26, 22 October 2009 (UTC)
414:19:46, 22 October 2009 (UTC)
380:19:45, 22 October 2009 (UTC)
366:19:03, 22 October 2009 (UTC)
335:16:14, 22 October 2009 (UTC)
308:00:12, 20 October 2009 (UTC)
287:21:37, 19 October 2009 (UTC)
108:23:35, 18 October 2009 (UTC)
93:23:29, 18 October 2009 (UTC)
5603:Digitaal archief Chess Life
5438:Percentage Expectancy Curve
5046:K-factor example: Rn ≈≈ Rp
5026:The meaning of the K factor
4210:02:37, 10 August 2021 (UTC)
4084:05:22, 28 August 2019 (UTC)
4066:04:30, 28 August 2019 (UTC)
3486:
2575:11:18, 2 January 2016 (UTC)
2446:13:24, 1 January 2016 (UTC)
2417:Photo 8: Keep, Throw, Keep,
2411:Photo 6: Keep, Throw, Throw
2402:Photo 3: Keep, Throw, Keep,
2396:Photo 1: Keep, Throw, Throw
2357:22:39, 28 August 2015 (UTC)
1853:= 0 and standard deviation
1759:13:55, 9 October 2014 (UTC)
1402:I know it's someone's name
5676:
5597:Who invented the K-factor?
5478:No mention of Roger Cook?
4642:The Rating of Chessplayers
4605:18:53, 29 March 2022 (UTC)
4582:15:45, 29 March 2022 (UTC)
4563:11:11, 29 March 2022 (UTC)
4195:20:09, 9 August 2021 (UTC)
3415:(last update: 5 June 2024)
3341:Hello fellow Wikipedians,
3249:(last update: 5 June 2024)
3175:Hello fellow Wikipedians,
3129:(last update: 5 June 2024)
3053:Hello fellow Wikipedians,
3043:20:10, 24 April 2017 (UTC)
3006:monotonous and continuous.
2947:Why the Logistic Function?
2879:(last update: 5 June 2024)
2781:Hello fellow Wikipedians,
2732:19:38, 31 March 2016 (UTC)
2711:23:37, 30 March 2016 (UTC)
2693:23:18, 29 March 2016 (UTC)
2675:, section 8.55(c), says, "
2668:23:07, 29 March 2016 (UTC)
2540:(last update: 5 June 2024)
2481:|deny=InternetArchiveBot}}
2456:Hello fellow Wikipedians,
2414:Photo 7: Keep, Keep, Throw
2399:Photo 2: Keep, Keep, Throw
2322:(last update: 5 June 2024)
2263:|deny=InternetArchiveBot}}
2238:Hello fellow Wikipedians,
2104:05:09, 23 April 2015 (UTC)
1736:08:18, 5 August 2014 (UTC)
1716:04:21, 30 April 2014 (UTC)
1670:22:00, 30 April 2013 (UTC)
1398:05:46, 27 April 2012 (UTC)
1384:05:38, 27 April 2012 (UTC)
1255:
974:17:31, 6 August 2010 (UTC)
955:14:36, 6 August 2010 (UTC)
942:13:35, 6 August 2010 (UTC)
5625:12:51, 26 July 2022 (UTC)
5525:N.S.W.C.A. Grading System
5469:12:32, 8 April 2022 (UTC)
5403:= 1617,60 = 1601,600 + 16
5020:16:24, 1 April 2022 (UTC)
5001:10:59, 1 April 2022 (UTC)
4531:Inflation in FIDE ratings
4175:15:44, 26 June 2021 (UTC)
4147:"Intrinsic Chess Ratings"
4016:02:06, 18 July 2018 (UTC)
3997:13:48, 17 July 2018 (UTC)
3482:12:47, 7 March 2018 (UTC)
3166:06:08, 27 July 2017 (UTC)
2988:Elo's theory is based on
2968:15:00, 19 June 2016 (UTC)
2771:11:31, 2 April 2016 (UTC)
2752:16:18, 1 April 2016 (UTC)
2420:Photo 9: Keep, Keep, Keep
2405:Photo 4: Keep, Keep, Keep
2376:01:32, 30 June 2015 (UTC)
2229:15:58, 16 July 2015 (UTC)
1685:15:45, 25 June 2013 (UTC)
1622:19:34, 21 July 2012 (UTC)
1598:09:28, 21 July 2012 (UTC)
1578:09:50, 10 July 2012 (UTC)
1466:16:16, 19 June 2012 (UTC)
1314:15:13, 19 June 2012 (UTC)
1197:12:23, 28 July 2011 (UTC)
919:08:02, 27 July 2010 (UTC)
885:03:21, 26 July 2010 (UTC)
857:19:27, 24 July 2010 (UTC)
836:09:44, 22 July 2010 (UTC)
747:08:57, 22 July 2010 (UTC)
708:08:19, 22 July 2010 (UTC)
649:03:13, 22 July 2010 (UTC)
636:03:08, 22 July 2010 (UTC)
600:16:19, 30 July 2010 (UTC)
546:17:51, 15 July 2010 (UTC)
5585:05:52, 1 June 2022 (UTC)
5571:05:26, 1 June 2022 (UTC)
5541:04:29, 1 June 2022 (UTC)
5507:20:57, 30 May 2022 (UTC)
5488:16:14, 30 May 2022 (UTC)
4982:{\displaystyle 10^{1/2}}
4043:16:26, 4 July 2019 (UTC)
3315:05:25, 17 May 2017 (UTC)
2623:rating of the strongest
2209:22:01, 5 July 2015 (UTC)
2194:09:46, 5 July 2015 (UTC)
2178:18:42, 3 July 2015 (UTC)
2155:18:25, 2 July 2015 (UTC)
2134:20:25, 10 May 2015 (UTC)
1650:02:37, 4 June 2013 (UTC)
1256:Starcraft 2's Use of Elo
1072:17:06, 22 May 2011 (UTC)
526:19:01, 5 July 2010 (UTC)
510:18:55, 5 July 2010 (UTC)
5384:We note the following:
4570:WP:No original research
4134:00:30, 1 May 2021 (UTC)
3967:10:55, 5 May 2018 (UTC)
3337:External links modified
3171:External links modified
3049:External links modified
2777:External links modified
2452:External links modified
2234:External links modified
1433:00:20, 2 May 2012 (UTC)
1416:22:58, 1 May 2012 (UTC)
1292:14:04, 8 May 2012 (UTC)
5640:. Fide.com. 2014-07-01
5456:D800(P) = (P - 50%)4C.
4983:
4948:
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4916:
4880:
4803:
4783:
4776:
4752:
4744:
4666:
4631:
4544:
4326:
4324:", "The original name
3950:
3557:
2592:), while I see in the
2389:Let's take an example:
2088:
2042:
2015:
1960:
1562:
799:
676:with the edit summary
18:Talk:Elo rating system
4984:
4949:
4917:
4881:
4804:
4777:
4745:
4667:
4632:
4542:
3951:
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2162:neutral point of view
2089:
2043:
2041:{\displaystyle E_{A}}
2016:
2014:{\displaystyle S_{A}}
1961:
1563:
800:
666:removed the sentence
486:Contradictory Example
462:(the argument clinic)
410:(the argument clinic)
42:of past discussions.
4958:
4934:
4896:
4820:
4789:
4762:
4681:
4652:
4617:
4536:pool will increase.
3573:
3498:
3396:regular verification
3230:regular verification
3110:regular verification
2990:Pairwise comparisons
2860:regular verification
2619:No it does not. The
2521:regular verification
2506:to let others know.
2467:. If necessary, add
2303:regular verification
2288:to let others know.
2249:. If necessary, add
2215:ELO scrabble ratings
2052:
2025:
1998:
1887:
1480:
1016:pairwise comparisons
768:
5047:
4273:The name is not an
4094:Chess rating system
3972:Glickman page as EL
3386:After February 2018
3220:After February 2018
3100:After February 2018
2996:as an example. See
2850:After February 2018
2829:parameter below to
2759:WP:Reliable Sources
2739:Internet Chess Club
2511:After February 2018
2502:parameter below to
2293:After February 2018
2284:parameter below to
2166:Knowledge:Criticism
1904:
1790:Pairwise comparison
1711:Mark D Worthen PsyD
1655:"Ratings inflation"
1634:Template:Refimprove
1204:Deflation explained
5045:
4979:
4944:
4912:
4876:
4799:
4772:
4740:
4662:
4627:
4545:
4543:Chess Fide Ratings
4271:But I don't think
3946:
3553:
3491:From the article.
3440:InternetArchiveBot
3391:InternetArchiveBot
3274:InternetArchiveBot
3225:InternetArchiveBot
3154:InternetArchiveBot
3105:InternetArchiveBot
2904:InternetArchiveBot
2855:InternetArchiveBot
2699:WP:Reliable Source
2516:InternetArchiveBot
2298:InternetArchiveBot
2084:
2038:
2011:
1956:
1890:
1849:, with mean value
1705:Using Latex Markup
1697:Performance_rating
1558:
1056:The Social Network
1050:The Social Network
795:
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3346:Elo rating system
3317:
3301:comment added by
3291:About the origin.
3250:
3180:Elo rating system
3130:
3058:Elo rating system
3045:
3029:comment added by
2970:
2958:comment added by
2880:
2786:Elo rating system
2749:
2573:
2541:
2461:Elo rating system
2355:
2323:
2243:Elo rating system
2175:
2136:
2124:comment added by
2101:
1990:
1976:comment added by
1814:
1777:
1553:
1456:comment added by
1393:, but it isn't.
1304:comment added by
1298:No, your moron.
1282:comment added by
1200:
1183:comment added by
1089:comment added by
971:
916:
833:
798:{\displaystyle ,}
705:
590:comment added by
532:League of Legends
269:
268:
72:
71:
54:
53:
48:current talk page
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5008:Common logarithm
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2568:Talk to my owner
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2350:Talk to my owner
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1741:Condorcet method
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1369:Pronunciation...
1359:
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1252:No, your moron.
1199:
1177:
1101:
1054:Perhaps mention
969:
959:There is a blog
914:
891:Oxford Companion
875:Oxford Companion
831:
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757:Oxford Companion
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688:Oxford Companion
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4511:FIDE Categories
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3516:
3501:
3496:
3495:
3489:
3459:
3444:
3439:
3407:
3400:have permission
3390:
3354:this simple FaQ
3339:
3293:
3278:
3273:
3241:
3234:have permission
3224:
3188:this simple FaQ
3173:
3158:
3153:
3121:
3114:have permission
3104:
3066:this simple FaQ
3051:
2949:
2923:
2908:
2903:
2871:
2864:have permission
2854:
2838:
2801:
2794:this simple FaQ
2779:
2652:
2582:
2572:
2567:
2532:
2525:have permission
2515:
2476:
2468:
2454:
2364:
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2297:
2258:
2250:
2236:
2217:
2142:
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1284:195.178.239.244
1277:
1258:
1227:
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1178:
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1079:
1052:
984:
935:
766:
765:
764:theoretically,
660:User:75.4.243.4
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5563:Bruce leverett
5551:
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5499:Bruce leverett
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5012:Bruce leverett
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4574:Bruce leverett
4532:
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4382:Bruce leverett
4377:
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4223:Bruce leverett
4217:
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4202:Bruce leverett
4181:
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4167:Bruce leverett
4137:
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3474:62.157.193.130
3458:
3455:
3434:
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3426:
3379:
3378:
3370:Added archive
3368:
3360:Added archive
3338:
3335:
3334:
3333:
3292:
3289:
3268:
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3260:
3213:
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3204:Added archive
3202:
3194:Added archive
3172:
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3084:Added archive
3082:
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2586:Magnus Carlsen
2581:
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2487:Added archive
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2239:
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2230:
2226:
2222:
2221:68.200.81.176
2214:
2210:
2206:
2202:
2198:
2197:
2196:
2195:
2191:
2187:
2186:71.48.250.231
2179:
2176:
2171:
2167:
2163:
2159:
2158:
2157:
2156:
2152:
2148:
2147:71.48.250.231
2139:
2137:
2135:
2131:
2127:
2126:173.11.44.141
2123:
2116:
2109:
2105:
2102:
2097:
2076:
2072:
2068:
2063:
2059:
2033:
2029:
2006:
2002:
1993:
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1991:
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1983:
1979:
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1953:
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1762:
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1760:
1756:
1752:
1748:
1740:
1738:
1737:
1733:
1729:
1728:71.198.169.64
1720:
1718:
1717:
1714:
1713:
1706:
1702:
1698:
1690:
1686:
1682:
1678:
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1346:
1343:
1339:
1338:
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1336:
1332:
1328:
1327:109.148.43.57
1319:
1317:
1315:
1311:
1307:
1303:
1295:
1293:
1289:
1285:
1281:
1274:
1273:
1269:
1265:
1261:
1253:
1249:
1246:
1244:
1240:
1236:
1235:72.226.12.214
1232:
1224:
1222:
1220:
1216:
1212:
1211:98.225.38.209
1203:
1201:
1198:
1194:
1190:
1186:
1182:
1174:
1171:
1167:
1164:
1161:
1156:
1153:
1148:ELO inflation
1147:
1141:
1137:
1133:
1128:
1127:
1126:
1125:
1118:
1117:
1116:
1115:
1112:
1109:
1104:
1103:
1102:
1100:
1096:
1092:
1091:41.239.69.171
1088:
1076:
1074:
1073:
1069:
1065:
1061:
1057:
1049:
1043:
1040:
1036:
1035:
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1022:
1017:
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975:
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946:
945:
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943:
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932:
920:
917:
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908:
904:
900:
896:
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888:
887:
886:
882:
880:
876:
872:
871:
870:
869:
868:
867:
866:
865:
858:
854:
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842:
839:
838:
837:
834:
829:
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816:
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811:
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792:
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780:
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762:
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748:
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668:
667:
665:
661:
650:
646:
644:
640:
639:
638:
637:
633:
629:
613:
606:Pronunciation
605:
603:
601:
597:
593:
592:24.203.166.47
589:
579:
577:
570:
565:
561:
560:
559:
558:
550:
548:
547:
543:
539:
531:
527:
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519:
514:
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493:
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491:
485:
481:
477:
473:
469:
467:
463:
460:
456:
455:
454:
453:
449:
445:
444:71.174.162.36
441:
437:
429:
415:
411:
408:
403:
402:
401:
400:
399:
398:
397:
396:
395:
394:
393:
392:
381:
377:
373:
369:
367:
363:
359:
358:132.183.98.85
354:
353:
352:
351:
350:
349:
348:
347:
346:
345:
336:
332:
328:
323:
322:
321:
320:
319:
318:
317:
316:
309:
305:
302:
298:
297:
296:
295:
294:
293:
288:
284:
280:
279:132.183.98.85
277:
276:
275:
274:
264:
261:
258:
257:
253:
250:
247:
246:
242:
239:
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235:
231:
228:
225:
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214:
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209:
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148:
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135:
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125:
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123:
122:
115:
114:
113:
112:
109:
105:
102:
97:
96:
95:
94:
90:
86:
85:155.52.208.80
82:
74:
67:
63:
61:
58:
57:
49:
45:
41:
40:
35:
28:
27:
19:
5653:
5642:. Retrieved
5632:
5614:
5611:
5600:
5524:
5512:
5477:
5459:
5447:
5446:
5437:
5436:
5412:
5386:
5383:
5040:
5037:
5029:
4991:
4925:
4891:
4887:
4816:
4784:
4757:
4753:
4677:
4674:
4647:
4641:
4639:
4553:
4550:
4546:
4534:
4514:
4350:
4270:
4266:MOS:INSTRUCT
4219:
4183:
4154:
4150:
4141:
4138:
4117:
4051:
4025:
3975:
3957:
3569:
3565:
3490:
3472:
3469:
3464:
3460:
3438:
3435:
3410:source check
3389:
3383:
3380:
3343:
3340:
3297:— Preceding
3294:
3272:
3269:
3244:source check
3223:
3217:
3214:
3177:
3174:
3152:
3149:
3124:source check
3103:
3097:
3094:
3055:
3052:
3025:— Preceding
3022:
2997:
2972:
2954:— Preceding
2950:
2930:
2927:
2924:
2902:
2899:
2874:source check
2853:
2847:
2834:
2830:
2826:
2824:
2783:
2780:
2736:
2722:
2696:
2680:
2676:
2671:
2653:
2583:
2560:
2535:source check
2514:
2508:
2503:
2499:
2497:
2458:
2455:
2430:
2366:
2365:
2342:
2317:source check
2296:
2290:
2285:
2281:
2279:
2240:
2237:
2218:
2182:
2143:
2120:— Preceding
2117:
2113:
1978:67.85.33.223
1972:— Preceding
1968:
1879:
1876:
1854:
1850:
1844:
1830:
1751:71.167.71.87
1744:
1724:
1709:
1694:
1658:
1631:
1586:
1475:
1452:— Preceding
1446:
1403:
1372:
1356:
1349:
1323:
1300:— Preceding
1296:
1278:— Preceding
1275:
1259:
1250:
1247:
1228:
1207:
1185:Luis Babboni
1179:— Preceding
1175:
1172:
1168:
1157:
1154:
1151:
1080:
1053:
988:
985:
936:
906:
902:
898:
894:
890:
874:
844:
823:
813:
806:
760:
756:
726:
715:
696:
687:
685:
680:
675:
670:
658:
614:pronounced?
611:
609:
583:
574:
554:
535:
498:
489:
440:Chessmetrics
433:
78:
65:
43:
37:
2841:Sourcecheck
2201:Ring Cinema
1827:ELO or Elo?
1794:71.167.73.5
1638:Template:cn
1458:46.10.229.1
1443:Chess photo
1408:Dancindazed
1376:Dancindazed
1245:Mnenomenon
1085:—Preceding
849:75.4.232.20
586:—Preceding
262:UC Berkeley
155:Elo points
36:This is an
5644:2014-07-01
5474:Roger Cook
4493:MaxBrowne2
4275:initialism
4126:MaxBrowne2
3977:User:Quale
3447:Report bug
3323:MathHisSci
3281:Report bug
3161:Report bug
3031:Fletch1729
2911:Report bug
1628:References
1605:Jeff Sonas
1583:Jeff Sonas
1260:From this
939:SunCreator
739:75.4.243.4
472:SunCreator
372:SunCreator
325:as it is.
251:Georgetown
229:Notre Dame
5375:D800(P) =
4813:Consider:
4345:Arpad Elo
4162:2374-3468
4092:Also see
3430:this tool
3423:this tool
3264:this tool
3257:this tool
3144:this tool
3137:this tool
2975:Anonywiki
2894:this tool
2887:this tool
2804:dead link
2744:Sjakkalle
2555:this tool
2548:this tool
2343:Cheers. —
2337:this tool
2330:this tool
2170:Sjakkalle
2145:question.
2140:Criticism
2096:Sjakkalle
1809:Sjakkalle
1772:Sjakkalle
1703:section--
1570:Waterture
1173:Regards,
1132:Anonywiki
966:Sjakkalle
911:Sjakkalle
828:Sjakkalle
700:Sjakkalle
664:this edit
662:has with
207:Dartmouth
196:Princeton
66:Archive 2
60:Archive 1
5305:1601,600
5053:R0 =1613
4216:Footnote
4187:Tomelena
4035:Adil3214
3436:Cheers.—
3311:contribs
3299:unsigned
3270:Cheers.—
3150:Cheers.—
3039:contribs
3027:unsigned
3010:Clpippel
2956:unsigned
2900:Cheers.—
2748:(Check!)
2721:Cheers,
2636:Clpippel
2625:Draughts
2606:PJTraill
2598:Alpha Go
2588:in 2014(
2561:Cheers.—
2471:cbignore
2438:Clpippel
2384:options.
2368:Pacerier
2253:cbignore
2174:(Check!)
2122:unsigned
2100:(Check!)
1986:contribs
1974:unsigned
1859:Clpippel
1813:(Check!)
1776:(Check!)
1701:MOS:MATH
1454:unsigned
1302:unsigned
1280:unsigned
1193:contribs
1181:unsigned
1087:unsigned
1060:Facemash
970:(Check!)
915:(Check!)
845:in chess
832:(Check!)
807:de facto
704:(Check!)
588:unsigned
557:BadSanta
538:Icerazor
518:Schmittz
502:Schmittz
327:Krakatoa
240:Columbia
185:Stanford
127:schools.
5352:52,00%
5326:400/25
4349:Do not
3350:my edit
3303:TheBr0s
3184:my edit
3062:my edit
2934:Janzert
2827:checked
2808:tag to
2790:my edit
2571::Online
2500:checked
2465:my edit
2362:Dubious
2353::Online
2282:checked
2247:my edit
1833:Bubba73
1430:Bubba73
1395:Bubba73
1391:acronym
1374:Weird.
1361:Bubba73
1342:Bubba73
1320:Lead-in
1297:--: -->
1155:Hello,
1108:Bubba73
1064:Aepryus
1039:Bubba73
1021:Paulipu
1005:Bubba73
990:Paulipu
949:Bubba73
879:Bubba73
734:player.
692:Linares
643:Bubba73
624:/eɪloʊ/
620:/iːloʊ/
459:Bubba73
407:Bubba73
301:Bubba73
163:Harvard
152:College
101:Bubba73
39:archive
5480:Eroica
5364:14,330
5361:D(P) =
5338:52,00%
5323:12,856
5318:12,865
4928:base e
4910:3.1623
4475:Nardog
4471:WP:RGW
4356:Nardog
4262:should
4076:Adpete
4058:Adpete
3989:Jytdog
3959:Pier4r
2835:failed
2800:Added
2763:Adpete
2724:cmɢʟee
2703:Adpete
2685:Adpete
2660:Adpete
2479:nobots
2261:nobots
1590:Shawnc
1251:-: -->
895:Oxford
628:Frungi
616:/ɛloʊ/
304:(talk)
218:U Penn
104:(talk)
5577:Quale
5533:Quale
5429:≈≈ Rp
5425:== Rp
5421:≈≈ Rn
5298:-400
5292:36,6%
5286:35,4%
5260:53,4%
5254:53,8%
5228:78,1%
5222:78,5%
5196:67,0%
5190:68,3%
5164:50,5%
5158:50,6%
5135:10,00
5132:50,0%
5129:10,00
5126:50,0%
5074:A400
4926:When
4750:(46)
4590:pool.
4376:note.
4157:(1).
4008:Quale
4004:EL:NO
3985:WP:EL
2656:WP:RS
2594:paper
1677:Quale
1642:Quale
1614:Quale
1221:ATBS
430:Color
265:1711
254:1715
243:1742
232:1750
221:1757
210:1767
199:1788
188:1834
177:1852
166:2009
16:<
5621:talk
5581:talk
5567:talk
5537:talk
5503:talk
5494:Here
5484:talk
5465:talk
5427:D800
5423:D800
5407:Elo
5401:D800
5395:P800
5389:Elo
5311:13,0
5295:0,37
5289:0,35
5283:-107
5274:1720
5266:400
5263:0,53
5257:0,54
5242:1586
5234:400
5231:0,78
5225:0,78
5210:1388
5199:0,67
5193:0,68
5178:1477
5167:0,51
5161:0,51
5146:1609
5114:1613
5100:P(D)
5094:P(D)
5016:talk
4997:talk
4601:talk
4578:talk
4559:talk
4522:talk
4497:talk
4489:this
4479:talk
4386:talk
4360:talk
4351:tell
4206:talk
4191:talk
4171:talk
4159:ISSN
4130:talk
4102:talk
4080:talk
4062:talk
4039:talk
4012:talk
3993:talk
3983:per
3981:here
3963:talk
3478:talk
3327:talk
3307:talk
3035:talk
3014:talk
2979:talk
2964:talk
2938:talk
2831:true
2767:talk
2729:τaʟκ
2707:talk
2689:talk
2664:talk
2640:talk
2621:KNDB
2610:talk
2504:true
2442:talk
2379:: ❝
2372:talk
2286:true
2225:talk
2205:talk
2190:talk
2151:talk
2130:talk
1982:talk
1863:talk
1845:The
1798:talk
1755:talk
1732:talk
1681:talk
1666:talk
1646:talk
1618:talk
1609:FIDE
1594:talk
1574:talk
1462:talk
1412:talk
1380:talk
1357:Done
1331:talk
1310:talk
1288:talk
1268:talk
1239:talk
1215:talk
1189:talk
1136:talk
1095:talk
1068:talk
1058:and
1025:talk
994:talk
961:here
907:does
889:The
873:The
853:talk
743:talk
632:talk
596:talk
542:talk
522:talk
506:talk
476:talk
448:talk
376:talk
362:talk
331:talk
283:talk
174:Yale
149:Rank
89:talk
5531:.
5431:Elo
5419:Elo
5378:16
5349:P =
5335:P =
5219:225
5187:136
5106:Rp
5071:Lin
5068:800
5065:Elo
5062:Elo
4640:In
4417:or
4327:Élő
4301:or
4123:-->
4096:.
3939:400
3872:400
3844:400
3809:400
3777:400
3747:400
3708:400
3680:400
3654:400
3404:RfC
3374:to
3364:to
3238:RfC
3208:to
3198:to
3118:RfC
3088:to
2868:RfC
2845:).
2833:or
2818:to
2681:are
2596:on
2529:RfC
2491:to
2311:RfC
2273:to
1548:400
1404:now
824:who
626:? —
612:Elo
571:ICC
564:ELO
5623:)
5617:KP
5605:.
5583:)
5569:)
5539:)
5505:)
5486:)
5467:)
5461:KP
5417:Rn
5405:Rp
5399:Rp
5393:Rn
5387:Rn
5308:25
5271:S5
5251:27
5239:S4
5207:S3
5202:0
5175:S2
5170:0
5143:S1
5138:0
5120:10
5117:20
5111:S0
5103:We
5097:We
5082:Rc
5079:Pl
5018:)
4999:)
4993:KP
4963:10
4954:(=
4940:10
4902:10
4858:−
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