Category: Sports – This Explainer

Understand how runners exchange a relay baton, what the takeover zone controls, and which mistakes can disqualify a team.

Learn what a rugby tackler must do after bringing down a ball carrier and why releasing and rolling away protects contestable possession.

See when a volleyball player may cross under the net, what contact with the opponent’s court is legal, and when interference creates a fault.

Understand what counts as an MLB mound visit, the team limit, timing rules, and why a second visit to one pitcher can force a change.

Learn how NFL officials determine forward progress, when a play becomes dead, and why a runner is protected from being driven backward.

See which NBA calls can be reviewed late in games, how the Replay Center helps, and why the public report is different from live replay.

Understand when an NHL line change creates too many men, what the five-foot bench allowance means, and who serves the bench minor.

Learn which feints are legal during a penalty kick, why stopping after the run-up is different, and how infringements affect the restart.

See how doubles teams choose their receiving order, when partners may change it, and what happens if the wrong player returns a serve.

Understand when cricket permits a substitute fielder, which duties the substitute may perform, and why replacing an injured player is limited.

Learn how to mark and replace a ball on the putting green, what objects may be used, and how accidental movement is corrected.

See which swimming strokes use the 15-metre underwater limit, how officials judge it, and why breaststroke follows a different rule.