Heavyweight unification series Heavyweight unification series The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class. The series was produced by HBO Sports and promoted by Don King. It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council. Prior to the series, the last undisputed heavyweight champion had been Leon Spinks, who won the championship in his 1978 victory over Muhammad Ali. Spinks had been stripped of
Shoot Boxing World Tournament 2010 the tournament, defeating three time S-Cup champion Andy Souwer in the semi finals in what was the biggest upset ever experienced in the sport. The event was held at the JCB Hall in Tokyo, Japan on Tuesday, November 23, 2010. S-Cup 2010 Finalists S-Cup 2010 Reservists Shoot Boxing World Tournament 2010 Shoot Boxing World Tournament 2010 or S-Cup 2010 was a shoot boxing event promoted by Caesar Takeshi. It was the seven bi-annual (70kg/154lbs weight class) Shoot Boxing World Tournament, featuring an eight-man single elimination format, with one reserve fight, all fought under Shoot Boxing Rules. The eight finalists and