Under World Taekwondo and Olympic rules, sparring is a full-contact event and takes place between two competitors on a matted 8 meter octagon. At the end of three rounds, the athlete with the most points is declared the winner. A tie, however, results in an additional round, known as "Golden Point". If no point is scored during the Golden Point, the player with the most registers on the PSS is declared the winner. If one athlete is knocked out, or is otherwise unable to continue as a result of a legal technique by his opponent, the other athlete is automatically awarded the victory.