Mike (born June 30, 1966) is an American professional boxer who competed from 1985 to 2005, and is scheduled to compete once in 2024. Nicknamed "Iron Mike"[4] and "Kid Dynamite" in his early career, and later known as "The Baddest Man on the Planet",[5] Tyson is regarded as one of the greatest heavyweight boxers of all time.[6] He reigned as the undisputed world heavyweight champion from 1987 to 1990. Tyson won his first 19 professional fights by knockout, 12 of them in the first round. 