What is a Putout? Definition, Formula, and Example

What Is a Putout in Baseball?

A putout (abbreviated PO) is the official scoring credit given to the one defensive player who physically completes an out. Every out on the field is assigned exactly one putout. Catch a fly ball, and you get the putout. Receive the throw at first base with your foot on the bag to retire a batter-runner, and you get the putout. Tag a runner sliding into second, catch strike three behind the plate, or step on a base to end a force play — each of those is a putout for the fielder who made the final play. It is the bookend to the assist: the assist goes to the fielder who helps the ball get there, and the putout goes to the fielder who finishes the job.

How a Putout Is Recorded and Counted

Putouts are not calculated from a formula — they are tallied event by event by the official scorer. The governing rule is simple: one out, one putout. The credit goes to:

• The fielder who catches a batted ball in the air (fly out, line out, pop out).
• The fielder who holds the ball while touching the base on a force out or who tags a runner or base.
• The catcher on a strikeout (strike three caught) — this is why catchers lead all positions in putouts.
• The first baseman on a routine groundout, since the throw ends with him stepping on the bag.

On a strikeout where the ball is caught, the catcher always gets the putout. On a double play, two separate putouts are recorded for the two outs. A team's total putouts in a completed nine-inning game always equal 27 — the number of outs required to win.

Worked Example

Position dictates putout volume far more than skill does. A starting first baseman routinely records around 1,300 putouts in a full season, because nearly every ground ball fielded by an infielder ends with a throw he catches at first base. A catcher behind a high-strikeout pitching staff can post 1,000-plus putouts almost entirely on caught third strikes. Compare that to a shortstop, who racks up assists by throwing runners out but only collects 200–300 putouts a year — mostly on line drives, pop-ups, and force outs he takes at second base. The raw number tells you the position, not the player's range.

Why Putouts Matter

Putouts are a building block, not a standalone evaluation tool. They feed directly into fielding percentage — the formula is (Putouts + Assists) ÷ (Putouts + Assists + Errors) — and into range factor, which uses (Putouts + Assists) per game to estimate how much ground a fielder covers. For front offices and historians, putout totals help reconstruct defensive workload across eras when modern tracking data didn't exist.

Limitations and Common Misconceptions

The biggest mistake is treating high putout totals as evidence of defensive excellence. They mostly reflect where you stand. First basemen and catchers always lead because outs funnel to them by the rules of the game, not because they are the best defenders. A first baseman with 1,400 putouts is not "better" than a shortstop with 250 — they play different positions. Putouts also say nothing about the difficulty of a play: an easy chest-high catch and a diving grab count identically. For actual range and value, use Outs Above Average or Defensive Runs Saved instead.

In Legends Deck: putouts and assists feed each card's fielding profile, helping the engine distinguish a sure-handed receiver at first from a rangy middle infielder — but the deeper defensive ratings lean on Statcast range data, not raw putout counts, so a card's glove rating reflects difficulty, not just volume.