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
The Long Count Fight International Boxing Hall of Fame. The Long Count Fight The Long Count Fight, or the Battle of the Long Count, was a professional boxing rematch between world heavyweight champion Gene Tunney and former champion Jack Dempsey. It took place on September 22, 1927, at Soldier Field in Chicago. "Long Count" is applied to the fight because when Tunney was down the count was delayed due to Dempsey's failure to go to and remain in a neutral corner. Whether this "long count" actually affected the outcome remains a subject of debate. Just 364 days before, on September 23, 1926, Tunney had