Shot Clock
A countdown timer that limits how long a team may hold the ball before attempting a shot.
Definition
The shot clock forces the team in possession to attempt a shot that reaches the rim, or scores, within a fixed period — for example, 24 seconds in professional and international basketball — or lose possession. It was introduced to stop teams from holding the ball indefinitely to protect a lead, and it fundamentally shapes the pace of the game.
Versions of the shot clock appear in other sports, including lacrosse and water polo, and tennis uses a serve clock with a similar time-limiting purpose. In basketball the clock resets on a change of possession and, in many rulebooks, to a shorter period after an offensive rebound rather than the full duration.
Meaning by sport
This term is used differently across sports:
- Basketball
- A 24-second limit to attempt a shot, with defined reset rules after rebounds and possession changes.
- water polo
- A possession clock limiting how long a team may hold the ball before shooting.
- Lacrosse
- A clock requiring the attacking team to take a shot within a set time.
Where you’ll hear “shot clock”
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Rules
- Shot clockA timing rule that requires the attacking basketball team to attempt a shot within a set number of seconds.
- Three-hit ruleThe volleyball rule that a team may contact the ball at most three times before it must cross the net.
- GoaltendingA basketball violation for interfering with a shot while the ball is on its downward path to the basket or above the rim.
- Two-bounce ruleA pickleball rule requiring both the serve and the return to bounce once before players may hit the ball out of the air.
- Backcourt violationA basketball rule breach for returning the ball into a team's own defensive half after it has crossed into the attacking half.
Healthy living
Techniques
- Cricket batting grip and stanceThe starting position every cricket stroke is built from — how the hands sit on the handle, how the feet and head are set, and what the setup decides before the ball is even bowled.
- VolleyA shot played near the net by blocking the ball out of the air before it bounces, using a short, firm punch rather than a full swing.
- The return of serveTennis's most under-coached shot — where to stand against a first and second serve, why blocking beats swinging, and what the Rules allow a returner to do.
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- Provenance
- Tier A — evergreen educational
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- Content updated
- 2026-09-01
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