Michael Spinks of his professional career. Spinks has been inducted into the International Boxing Hall of Fame and the World Boxing Hall of Fame. The International Boxing Research Organization and BoxRec rank Spinks among the ten greatest light heavyweights of all time. Spinks won the 1974 156-pound Golden Gloves Light Middleweight Championship by defeating Wilber Cameron in Denver, Colorado and then took the Silver Medal in the National AAU 165-pound Championship Competition in 1975, losing in three rounds to Tom Sullivan in Shreveport, Louisiana. He rebounded to take the 1976 National Golden Gloves Middleweight championship with a three-round victory over Lamont Kirkland
Leon Spinks vs. Muhammad Ali II holding. The Associated Press scored the fight 12-3 for Ali, while the three judges had the bout 11-4, 10-4 and 10-4 all in favor of Ali giving him a Unanimous decision win. Ali regained the WBA heavyweight title and avenged his split decision loss to Spinks from seven months prior. He also became the first man to win the World Heavyweight Championship three times. In June 1979, Ali sent an official letter of retirement to the WBA. Promoter Bob Arum said he paid Ali $300,000 to announce his retirement because Ali's reluctance had delayed the scheduling of a fight between