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Ultimate zone rating. Ultimate zone rating (UZR) is a sabermetric statistic used to measure fielding. It compares the event that actually happened (hit/out/error) to data on similarly hit balls in the past to determine how much better or worse the fielder did than the "average" player. UZR divides a baseball field into multiple zones and ...
Baseball Think Factory, abbreviated as BTF or BBTF, was a sabermetrically -oriented baseball web site which featured daily news stories in baseball, with original content contributed by SABR members such as Dan Szymborski. The site was previously branded as Baseball Primer, and was created in 2001 by the founders of Baseball-Reference.
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 ...
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 ...
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.) Power–speed number is displayed as a number with one digit ...
Value over replacement player. In baseball, value over replacement player (or VORP) is a statistic popularized by Keith Woolner that demonstrates how much a hitter or pitcher contributes to their team in comparison to a replacement-level player who is an average fielder at that position and a below average hitter. [1][2] A replacement player ...
Extrapolated Runs (XR) is a baseball statistic invented by sabermetrician Jim Furtado to estimate the number of runs a hitter contributes to his team. XR measures essentially the same thing as Bill James' Runs Created, but it is a linear weights formula that assigns a run value to each event, rather than a multiplicative formula like James' creation.
Isolated Power. In baseball, isolated power or ISO is a sabermetric computation used to measure a batter's raw power. One formula is slugging percentage minus batting average . The final result measures how many extra bases a player averages per at bat. A player who hits only singles would thus have an ISO of 0.