GUIDES · BETSLIP DOCTOR
Why do at-bats and plate appearances differ in a baseball box score?
A plate appearance records a completed turn at the plate, while an at-bat includes only qualifying outcomes. A walk or sacrifice fly adds a plate appearance without adding an at-bat, so the two totals can differ.
For Baseball readers comparing a hitter's standard statistics · Updated
A plate appearance is the broader count
A plate appearance (PA) is a batter's completed turn at the plate. An at-bat (AB) is a narrower scoring category used in statistics such as batting average and slugging percentage.
A hit, reaching on an error or fielder's choice, and most outs count as at-bats. Walks and sacrifice flies are plate appearances but are not at-bats.
Read the two totals together
The difference between PA and AB is not missing data by itself. It often reflects outcomes that count as a completed turn but are excluded from the at-bat denominator.
Use the stat named in the comparison: batting average uses hits divided by at-bats, while a plate-appearance total describes completed turns.
Hypothetical four-turn line
Fictional example: a batter records a single, a walk, a sacrifice fly and a strikeout in four completed turns. That is four plate appearances and two at-bats: the single and strikeout count as AB, while the walk and sacrifice fly do not.
Related questions
Does every plate appearance count as an at-bat?
No. Walks and sacrifice flies are common examples of plate appearances that do not count as at-bats.
Which total is used for batting average?
Batting average is hits divided by at-bats, not plate appearances.