A home run (abbreviated HR) is scored when the ball is hit in such a way that the batter is able to circle all the bases, ending at home plate and scoring runs for himself and each runner who was already on base. In modern baseball, the feat is typically achieved by hitting the ball over the outfield fence between the foul poles (or making contact with either foul pole) without first touching the ground, resulting in an automatic home run. There is also the "inside-the-park" home run, increasingly rare in modern baseball, where the batter circles the bases while the baseball is in play on the field.
When a home run is scored, the batter is also credited with a hit and a run scored, and an RBI for each runner that scores, including himself. Likewise, the pitcher is recorded as having given up a hit, a run for each runner that scores including the batter, and an earned run each for the batter and for all baserunners who did not initially reach base on error, except for the runs scored by any runners who reached base while facing an earlier pitcher are charged to that pitcher.