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Rules & officiating

Umpire

An official who adjudicates play and rules on facts such as dismissals, calls, or the score in sports including cricket, tennis, and baseball.

Rules & officiating

Definition

An umpire is a match official responsible for judging events as they happen and applying the rules to them. Depending on the sport an umpire calls the score, rules a player out, judges whether a delivery is legal, and signals decisions with recognised gestures. Umpires often work in a team, with duties divided across positions on the field or court.

Because different sports assign the title differently, an umpire's authority is not universal. In cricket two on-field umpires adjudicate dismissals and no-balls; in tennis the chair umpire controls a single match and announces the score; and in baseball a crew of umpires calls balls, strikes, and outs. In some sports the umpire is the senior official, while in others, such as football, that role belongs to the referee.

Meaning by sport

This term is used differently across sports:

Cricket
One of two on-field officials who judge dismissals, no-balls, and wides and signal boundaries, supported by a third umpire off the field.
Tennis
The chair umpire who controls a single match, calls the score, and can overrule line calls.
Baseball
A member of the officiating crew who calls balls, strikes, outs, and fair or foul balls.
Badminton
The official in charge of the match and court who calls faults and announces the score.

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Content updated
2026-08-04

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