Leon Spinks results. In 1994 he lost a bout by KO to John Carlo, the first time a former heavyweight champion had lost to a boxer making his pro debut (promoter Charles Farrell later admitted to falsifying Carlo's record in order to get the fight sanctioned by the District of Columbia). Spinks retired at age 42, after losing an 8-round decision to Fred Houpe in 1995, who was coming off a seventeen-year hiatus. During the 1990s, Spinks worked for Frontier Martial-Arts Wrestling, winning its world title in 1992, making him the only man to hold titles in both boxing and wrestling. In
Michael Spinks already a top ranked contender, and after beating former and future world light-heavyweight champion Marvin Johnson by a knockout in four rounds, the WBA made Spinks their number one challenger, and so, on July 18 of that year, he met WBA light-heavyweight champion Eddie Mustafa Muhammad, once again in Las Vegas. Spinks dropped Mustafa Muhammad in round 12 and went on to become the WBA light heavyweight champion with a 15-round decision win. He defended the title once in '81, beating Vonzell Johnson by a knockout in seven. 1982 began with a knockout victory over Mustafa Wassaja. Spinks had become