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
WWA World Heavyweight Championship 2001. There, the title was contested in a tournament won by Jeff Jarrett. The title was contested in the WWA as its primary title until May 25, 2003, where the title was unified with the National Wrestling Alliance World Heavyweight Championship in Auckland, New Zealand by Jeff Jarrett, the NWA World Heavyweight Champion, who defeated Sting, the WWA World Heavyweight Champion. WWA World Heavyweight Championship The World Wrestling All-Stars (WWA) World Heavyweight Championship was a professional wrestling world heavyweight championship in World Wrestling All-Stars. It was the primary championship in the WWA. The title was sanctioned by WWA as their