List of Major League Baseball career at bat leaders
In baseball, an at bat (AB) or time at bat is a batter's turn batting against a pitcher. An at bat is different from a plate appearance. A batter is credited with a plate appearance regardless of what happens during his turn at bat. A batter is only credited with an at bat if that plate appearance does not have one of the results enumerated below: While at bats are used to calculate certain statistics, including batting average, on-base percentage, and slugging percentage, a player can only qualify for  the season-ending rankings in these categories if he accumulates 502 plate appearances during the season. Pete Rose is the all-time leader in at bats with 14,053. Rose is also the only player in MLB history with more than 13,000 career at bats. There are only 29 players in MLB history that have reached 10,000 career at bats, with Albert Pujols being the only one active.