Quintuple champion Quintuple champion In different sports an athlete who wins five crowns, titles, medals, belts, or other distinctions is called a Quintuple Champion. In boxing, a quintuple champion is a boxer who has won world titles in at least five different weight classes. The first man in boxing to earn this distinction was Thomas Hearns on November 4, 1988. Hearns won first the Welterweight (147 lbs) title, later annexed the Super Welterweight (154 lbs) belt. Rather than win the next closest division in weight, the Middleweight (160 lbs), he moved up to three divisions to earn the Light Heavyweight (175 lbs)
Weight class (boxing) limit is 190 lb. Notes: When the (amateur) International Boxing Association (AIBA) was founded in 1946 to govern amateur boxing, it metricated the weight class limits by rounding them to the nearest kilogram. Subsequent alterations as outlined in the boxing at the Summer Olympics article; these have introduced further discrepancies between amateur and professional class limits and names. The lower weight classes are to be adjusted in September 2010, to establish an absolute minimum weight for adult boxers. Amateur weight classes also specify the "minimum" weight (which the same as the maximum weight of the next highest class). For safety