User:Mrwalker545/BoPA (Bases over Plate Appearances)

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BoPA (Bases over Plate Appearances) is a baseball statistic that precisely measures offensive production. BoPA corrects for the deficiencies in Batting Average (which ignores base-on-balls and extra-base hits); Slugging Percentage (which also ignores base-on-balls); On-Base Percentage (which ignores extra-base hits); and OPS (which double counts bases).

The formula for BoPA is Total Bases divided by Plate Appearances. As an example: A batter has five plate appearances in a game, going 1-4 with three strikeouts, a walk, and a double. In this example, the batter's BoPA for the game is .600 (whereas his batting average is .250; slugging percentage .500; on-base percentage .400; and OPS .900). A hitter with a BoPA of .600 can be projected to reach 6 bases over every 10 plate appearances. In this way batters with both selectivity at the plate (earning better than average base-on-balls and hit-by-pitches) and power (better than average extra base hits) are rewarded within BoPA. While OPS directionally accomplishes the same thing, the BoPA average has more meaning because base coverage is precisely measured.

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