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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.
Known for. Sabermetrics. George William James (born October 5, 1949) [ 1][ 2] is an American baseball writer, historian, and statistician whose work has been widely influential. Since 1977, James has written more than two dozen books about baseball history and statistics. His approach, which he named sabermetrics after the Society for American ...
Power–speed number or power/speed number (PSN) is a sabermetrics baseball statistic developed by baseball author and analyst Bill James which combines a player's home run and stolen base numbers into one number. [1] The formula is: = +. [1] (It is the harmonic mean of the two totals.)
Bill James, who coined the term "sabermetrics". Sabermetrics (originally SABRmetrics) is the original or blanket term for sports analytics, the empirical analysis of baseball, especially the development of advanced metrics based on baseball statistics that measure in-game activity.
Bill James, the father of modern analytics, says there are a lot of rule changes that could make baseball a better game. Bill James on MLB: Too much is foul, and more thoughts on making the game ...
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 ...
49718211. Win Shares is a 2002 book about baseball written by Bill James and Jim Henzler. The book explains how to apply the concept of sabermetrics to assess the impact of player performance in a combination of several areas, including offensive, defensive, and pitching on their team's overall performance. The resulting "Win Share" also takes ...
James explains in his book, The Bill James Historical Baseball Abstract, why he believes runs created is an essential thing to measure: With regard to an offensive player, the first key question is how many runs have resulted from what he has done with the bat and on the basepaths.