Michael Spinks world Heavyweight champion in Las Vegas. 1979 saw Spinks get less than three minutes of boxing action inside a ring, with his only fight ending in a first round knockout of Marc Hans, but in 1980, Spinks took his ascent towards the top to another level, when he beat future IBF super-middleweight champion Murray Sutherland, David Conteh, and fringe contenders Ramon Ronquillo and Alvaro Yaqui Lopez (who challenged for a world title four times). Of his five wins that year, three came by knockout, Sutherland and Johnny Wilburn being the only ones who lasted the distance. By 1981, Spinks was
Leon Spinks Rico and knocked him out in round one. He then fought Scott LeDoux to a draw and defeated Italian champion Alfio Righetti by a decision. Now a lower-ranked contender, he made history on February 15, 1978, by beating Muhammad Ali on a 15-round split decision in Las Vegas, Nevada. Spinks won the world heavyweight title in his eighth professional fight, the shortest time in history. The aging Ali had expected an easy fight, but he was out-boxed by Spinks, who did not tire throughout the bout. It was one of the few occasions when Ali left the ring with a