Michael Spinks, Heavyweight and Light Heavyweight, 31-1
Gold Medal – 1976 Olympics, Montreal, Canada
Light Heavyweight and Heavyweight Champion
Most people remember Michael Spinks for the worst minute-and-a-half of his professional boxing life, when Mike Tyson absolutely demolished him in the first round of their heavyweight title fight in 1988. 91 seconds – that’s all it took to end his career. Spinks would never fight again, though few remember that his loss to Tyson was the only professional fight he ever actually lost.