At the Olympics, boxing is judged on points, with fights lasting a maximum of four rounds, each two minutes long.
Five judges watch the bouts and each press a button when they think a fighter has landed a clean blow. If three press their button at the same time the fighter scores a point.
The fighter with the most points at the end of the bout wins.
At the Olympics boxers must wear headguards to protect them. Boxers must also be
amateur, which means they aren't allowed to be paid to fight.
Only men are allowed to box at the Olympics.