Classes 1–5 were for athletes with a physical impairment that affected their legs, and who competed in a sitting position.

The lower the number, the greater the impact the impairment aws on an athlete's ability to compete.

Winners and runners-up of each group qualified for the knock-out stage, with the best two group winners receiving a bye to the quarter-finals and the other 12 teams playing from the round of 16.

In this edition of the Games, no bronze medal match was held.

Losers of each semifinal were automatically awarded a bronze medal.