Mike Tyson's Mansion, Ohio, United States

Tyson competed at the 1982 Junior Olympic Games, where he won a silver medal, after the loss in the finals against Petr Palecek, an amateur Czech boxer. He holds the Junior Olympic quickest knockout record with 8 seconds. In addition he won every bout at the Junior Olympic Games by knockout. He fought Henry Tillman twice as an amateur losing both bouts by close decision. Tillman went on to win heavyweight Gold at the Los Angeles Olympics.
Tyson made his professional debut as an 18 year old on March 6, 1985, in Albany, New York. He defeated Hector Mercedes via a first round knockout. He had 15 bouts in his first year as a professional. Fighting frequently, Tyson won 26 of his first 28 fights by KO/TKO - 16 in the first round. The quality of his opponents gradually increased to journeyman fighters and borderline contenders, like James Tillis, David Jaco, Jesse Ferguson, Mitch Green and Marvis Frazier. His win streak attracted media attention, leading to his being billed as the next great heavyweight champion. D'Amato died in November 1985, relatively early into Tyson's professional career; some speculate that his death was the genesis of many of the troubles Tyson was to experience later as his life and career progressed.