Ancient China had its own form of mixed martial arts. Called lei tai, it was a no-holds-barred mixed combat sport that combined Chinese martial arts, boxing and wrestling. Killing your opponent was allowed.
The sport was played by having a man on a rail-less platform who would invite anyone who wished to challenge them. If a challenger won, they became the man on the platform. But if a man beat enough opponents they would win acclaim as a “champion.” One famous champion, Lama Pai Grandmaster Wong Yan-Lam, fought over 150 people over 18 days to become a champion.
The modern form of lei tai appeared during the Song Dynasty. It is still practiced, though in a modified form that makes deaths less likely.