Decision Review System (DRS)
In cricket, a technology-based system that lets players challenge on-field umpire decisions using replays, ball-tracking, and edge detection.
DRS stands for Decision Review System.
Definition
The Decision Review System (DRS) is cricket's formal process for reviewing certain on-field umpire decisions with technology. Each side is allowed a limited number of unsuccessful reviews per innings; a captain or batter signals a review, usually by making a 'T' shape with the arms, and the third umpire re-examines the decision using tools such as ball-tracking, edge detection from audio or infra-red, and slow-motion replays.
DRS is used mainly for decisions on dismissals, including leg-before-wicket and caught behind. Where ball-tracking is involved, an 'umpire's call' margin means marginal decisions stay with the on-field umpire's original ruling. The system aims to eliminate clear errors while preserving the on-field umpire's authority; it is cricket's counterpart to football's VAR and tennis's electronic line-calling, each tailored to its own sport.
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Commonly confused with
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- AppealThe Decision Review System (DRS) entry flags Appeal as the term it is most often mistaken for.
- Video Assistant Referee (VAR)The Decision Review System (DRS) entry flags Video Assistant Referee (VAR) as the term it is most often mistaken for.
- Third UmpireThe Third Umpire entry flags Decision Review System (DRS) as the term it is most often mistaken for.
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Officiating
- Video ReviewVideo review lets officials re-examine footage of a contested moment to confirm or overturn a close call — a goal, a line, a foul — an aid used across many sports.
- Line JudgeA boundary-line official who calls whether the ball or player is in or out and flags foot faults, working under the head referee across many sports.
- UmpireA match official who rules on lines, serves and dismissals in racket, bat-and-ball and net sports such as tennis, cricket and baseball — and, in racket sports, also keeps the running score.
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- 2026-09-01
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