Cap Anson, the all-time leader in fielding errors as a first baseman.

In baseball statistics, an error is an act, in the judgment of the official scorer, of a fielder misplaying a ball in a manner that allows a batter or baserunner to advance one or more bases or allows an at bat to continue after the batter should have been put out.

First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team. A first baseman is the player on the team playing defense who fields the area nearest first base, and is responsible for the majority of plays made at that base.

Cap Anson is the all-time leader in errors as a first baseman with 658 career. Anson is the only first baseman to commit over 600 career errors. Dan Brouthers is second all-time with 513 career errors and the only other first baseman to commit more than 500 errors.

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Albert Pujols, the active leader and tied for 91st in career errors at first base.

• Stats updated as of April 7, 2022