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 heavyweight champion Gerrie Coetzee. In the following fight, Spinks defeated former world title challenger and European title holder Alfredo Evangelista by a knockout in round 5. He fought to a draw in with Eddie López, in May 1980 he scored a knockout over Kevin Isaac, and in October beat the WBC's top-ranked challenger, Bernardo Mercado, by a knockout in round nine, this fight was on the undercard of Muhammad Ali vs. Larry Holmes. His strong performance against Mercado earned Spinks a title match against Larry Holmes. In Spinks' only fight in 1981, and what would be his last opportunity to