The broomstick sport J.K. Rowling created for the Harry Potter world is Quidditch.
Quidditch is played by two teams of seven players. Each team has three Chasers, two Beaters, one Keeper, and one Seeker. Players use broomsticks and try to score with the Quaffle while Beaters protect teammates and disrupt opponents with Bludgers.
The Golden Snitch is worth 150 points when caught, and catching it usually ends the match. That high value means a team can win even if it trails on ordinary goals. Harry plays Seeker for Gryffindor at Hogwarts.
Quidditch is fictional, but its popularity inspired real-world adaptations played without flying. Some organizations later changed the sport’s name to avoid trademark and licensing issues. Gobstones and wizard chess are other games in Rowling’s setting, while Quodpot is a separate wizarding sport mentioned in supplementary material.