66:. Each player then has a rating in Batting Runs, Pitching Runs, and Fielding Runs, usually adjusted for park and position, and the sum of these values is divided by 10 and is expressed as an offset in games from an "average" baseball player. Thus, a star player in a season might have been worth 6 games more than an average player, while a scrub might be 5 games below average. The justification for representing a game as 10 runs was determined empirically and varied by era, but 10 was the rule of thumb for back-of-the-envelope computations, e.g. for fans comparing players using
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awards a hitter with runs which scored when he collected a hit or a walk, even though the player has no control over whether the players who batted before him got on base, which is a significant influence on whether he is able to drive them in. Thus, players with high RBI totals for a season may have
30:
players, and to enable players to be compared against each other even when they played for different teams, at different positions, and in different eras. It was developed by
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TPR helped disseminate the notion that players should not be given credit for events over which they have no control. As an example which embraces giving such credit, the
103:, foremost among them being the observation that an average player has a TPR value of 0, whereas in fact an average player has substantial positive value.
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such not because they're among the best hitters themselves, but because they hit behind players who are among the best at getting on base.
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In the 1990s, some criticisms of TPR prompted other sabermetricians to develop new methods of measuring player value, such as
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50:, in which each event in a baseball game (for instance, a
26:(BFW/PW) is a metric for measuring the value of
97:presented some of these criticisms in his book
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43:series of encyclopedias during the 1980s.
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46:Total player rating is computed using
7:
14:
122:The Dickson Baseball Dictionary
1:
91:value over replacement player
37:and was popularized in the
24:Batter-Fielder/Pitcher Wins
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62:) is assigned a value in
120:Dickson, Paul (2009).
22:(TPR), also known as
156:Baseball statistics
20:Total player rating
124:(Third ed.).
87:equivalent average
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48:linear weights
40:Total Baseball
32:sabermetrician
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68:runs created
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60:stolen base
35:Pete Palmer
107:References
100:Win Shares
95:Bill James
79:statistic
150:Category
28:baseball
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77:(RBI)
56:double
58:or a
130:ISBN
89:and
64:runs
54:, a
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