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Game score. Game score is a metric devised by Bill James as a rough overall gauge of a starting pitcher 's performance in a baseball game. It is designed such that scores tend to range from 0–100, with an average performance being around 50 points. [ 1]
Major League Baseball. Major League Baseball (MLB) defines games behind as "the average of the differences between the leading team wins and the trailing team wins, and the leading teams losses and the trailing team losses." [22] A games behind column almost always appears in MLB standings for each five-team division.
Pythagorean expectation. Pythagorean expectation is a sports analytics formula devised by Bill James to estimate the percentage of games a baseball team "should" have won based on the number of runs they scored and allowed. Comparing a team's actual and Pythagorean winning percentage can be used to make predictions and evaluate which teams are ...
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Wins Above Replacement or Wins Above Replacement Player, commonly abbreviated to WAR or WARP, is a non-standardized sabermetric baseball statistic developed to sum up "a player's total contributions to his team". [ 1 ] A player's WAR value is claimed to be the number of additional wins his team has achieved above the number of expected team ...
Player efficiency rating. The player efficiency rating ( PER) is John Hollinger 's all-in-one basketball rating, which attempts to collect or boil down all of a player's contributions into one number. Using a detailed formula, Hollinger developed a system that rates every player's statistical performance. [ 1]
Winning percentage. In sports, a winning percentage or Copeland score is the fraction of games or matches a team or individual has won. The statistic is commonly used in standings or rankings to compare teams or individuals. It is defined as wins divided by the total number of matches played (i.e. wins plus draws plus losses).
Rating percentage index. The rating percentage index, commonly known as the RPI, is a quantity used to rank sports teams based upon a team's wins and losses and its strength of schedule. It is one of the sports rating systems by which NCAA basketball, baseball, softball, hockey, soccer, lacrosse, and volleyball teams are ranked.