Boccia competitors aim to propel six balls as close to a target ball (the 'Jack') as possible. The Jack is thrown first, followed by each athlete throwing their balls in turn. The winner is the team or player whose ball is closest to the Jack, scoring one point for the win and an additional point for every ball that sits closer to the jack than the opposition's closest ball.
This process, known as an 'end', is repeated four times in individual or paired games, and six in team events, the overall winner being the country who has scored the most points. Men and women compete together, in individual, paired and team events.
BC1 - athletes may have an assistant to perform certain duties, such as handling the Boccia balls.
BC2 - Athletes will require no assistant.
BC3 - Athletes deliver each ball with the use of a ramp, and can instruct a sports assistant to position the ramp.
BC4 - Athletes can use an underhand pendulum swing to throw the ball.