A.B. throws the ball using his left hand. The opposing side then propels the first of six balls toward the target ball in hopes it will come to rest as close to it as possible, like in horseshoes. Whenever one side's ball is lying closest to the target, the other side must take a turn. Each side propels six balls per round. When a round ends, the side with a ball closest to the target ball scores one point, plus one point for each additional ball it has closer to the target than the other side's closest ball.
Competition generally lasts four rounds.
In the Paralympics, boccia competition is open only to people with cerebral palsy who use wheelchairs and meet requirements regarding their ability or inability to use motor skills. Players compete in one of three different classifications. A player's classification is based upon his ability to use his motor skills. A.B. has played boccia since 1992. Members of the Paralympics boccia team are chosen based mostly on their performance during the previous four years.