A combat sport, or fighting sport, is a competitive contact sport with one-on-one combat. Determining the winner depends on the particular contest's rules. In many fighting sports, a contestant wins by scoring more points than the opponent or by disabling the opponent. Boxing, kickboxing, amateur wrestling, judo, mixed martial arts, and Muay Thai are examples of combat sports.
Folk wrestling exists in many forms and in most cultures, and can be considered a cultural universal. The Ancient Olympic Games were largely composed of sports that tested skills related to combat, such as armored foot races, boxing, wrestling, pankration and chariot racing, amongst others. Combat sports are first recorded during the Olympic games of 648 B.C. with pankration. Pankration allowed competitors to use all striking and grappling techniques. The only rules for this sport in its origin were no biting and no eye gouging. A winner was decided by submission, unconsciousness, or even death of an opponent. It is a common occurrence for matches to last for hours. Pankration grew in popularity during the Hellenic Period. Matches were in small square arenas to promote engagement. This tradition of combat sports was taken even further by the Romans with gladiators who would fight with weapons, sometimes to the death.