Category: Sports – This Explainer

Learn when tennis players switch ends, how long changeovers last, and why there is no seated rest after the first game of a set.

Learn why cricket umpires normally need a fielding appeal before giving a batter out and when an appeal may be withdrawn.

Learn the relief choices for red and yellow penalty areas, the one-stroke penalty, and when a golfer may play the ball as it lies.

Learn when a swimmer’s early movement becomes a false start, why a race may continue, and how relay exchanges are judged differently.

Learn what rugby yellow and red cards mean, how long a temporary suspension lasts, and why replacement rules can differ by sanction.

Learn the standard FIVB substitution limits, how starters may re-enter, and why some 2026 elite events are testing a higher allowance.

Learn which player starts on second base in MLB extra innings, how substitutions work, and why an unearned run can still decide the game.

Learn when an NFL coach may challenge a ruling, how timeouts and challenge limits work, and which plays are reviewed automatically.

Learn when the NBA uses a jump ball, how the toss is administered, and which movements by the two jumpers create violations.

Learn how hockey teams substitute during play, when a changing skater is considered off the ice, and why too many men is called.

Learn how the goalkeeper possession limit is counted and why holding the ball too long now gives the opponents a corner kick.

Learn how individual time trials use staggered starts, prohibit drafting, and rank riders by elapsed time rather than road position.