On base percentage (original) (raw)
In baseball statistics, on base percentage (denoted by OBP) is a measure of how often a batter gets to first base for any reason other than a fielding error or a fielder's choice. It may be calculated as:
(H + BB + HBP) / (AB + BB + HBP + SF)
OBP is sometimes referred to as "on base average" or OBA.
See also: Baseball statistics