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
Philip S. Porter the following accomplishments: Porter's autobiography lists ranks in the following martial arts: Philip S. Porter Philip S. Porter (1925 – August 7, 2011) was a martial artist in the United States. Porter began his martial arts career as a boxer in 1943 at age 18. He was later a member of the West Point Boxing Team and, in 1950, Light Heavyweight Boxing Champion of the Western Area of the Air Training Command, USAF. He graduated from the United States Military Academy at West Point in 1948, and served in the U.S. Army and Air Force for 25 years, retiring as