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Baseball statistics include a variety of metrics used to evaluate player and team performance in the sport of baseball. Because the flow of a baseball game has natural breaks to it, and player activity is characteristically distinguishable individually, the sport lends itself to easy record-keeping and thus both compiling and compiling statistics .
In the most basic runs created formula: = (+) + where H is hits, BB is base on balls, TB is total bases and AB is at-bats.. This can also be expressed as = = where OBP is on-base percentage, SLG is slugging average, AB is at-bats and TB is total bases, however OBP includes the hit-by-pitch while the previous RC formula does not.
Batting Park Factor, also simply called Park Factor or BPF, is a baseball statistic that indicates the difference between runs scored in a team's home and road games. Most commonly used as a metric in the sabermetric community, it has found more general usage in recent years.
Statistics have been kept for the Major Leagues since their creation and are an important part of the baseball experience. The practice was started by Henry Chadwick in the 19th century who devised the statistical measures of batting average and earned run average .
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.
General managers, managers, and baseball scouts use statistics to evaluate players and make strategic decisions. Rickey Henderson—the major leagues' all-time leader in runs and stolen bases—stealing third base in a 1988 game. Certain traditional statistics are familiar to most baseball fans. The basic batting statistics include: [150]
Cook's 1964 book Percentage Baseball was one of the first of its kind. [4] At first, most organized baseball teams and professionals dismissed Cook's work as meaningless. The idea of a science of baseball statistics began to achieve legitimacy in 1977 when Bill James began releasing Baseball Abstracts, his annual compendium of baseball data.
Rod Carew had a .408 BABIP in 1977, one of the best single-season BABIPs since 1945. [1]In baseball statistics, batting average on balls in play (abbreviated BABIP) is a measurement of how often batted balls result in hits, excluding home runs. [2]