Quidditch
Quidditch is the magical sport that wizards and witches alike absolutely adore - and it's easy to see why. It's a sport on flying brooms! There are seven players on each team (three Chasers, one Keeper, two Beaters and one Seeker), four balls (one Quaffle, two Bludgers and one Snitch), three hoops (but you can only score the Quaffle in them), ten points per goal, and 150 points if you catch the Snitch, which also ends the game. Hogwarts has an inter-house championship (which Harry takes part in once he's chosen for the Gryffindor Quidditch team) and there is also a Quidditch World Cup. In the UK and Ireland, there are also local Quidditch teams, such as the Chudley Cannons, which Ron supports. Apparently, they're not very good, though.