A statistic in baseball that measure the times in which a player or a piece of equipment, excluding his bat, is contacted by the ball during a pitch. When the batter is hit by a pitch, they will be awarded first base and receive a Hit By Pitch - HBP.
In the context of a pitcher, this action is referred to as a "Hit Batsman - HB" and the pitcher receives an HB for every batter they hit.
For a batter to be awarded with a Hit By Pitch and progress to first base as a baserunner he must be 1) hit by a pitch outside of the strike zone, 2) had no opportunity to avoid it and 3) he did not swing at the ball.
Hit By Pitch Records