Muhammad Ali
Sugar Ray Leonard
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Muhammad Ali leads 2 of 3 categories. Our all-time ranking places Muhammad Ali at #2 and Sugar Ray Leonard at #7.
The case for Muhammad Ali
The most consequential figure in boxing history and, by his own and much of the world's reckoning, the greatest heavyweight. Ali finished 56-5 with 37 knockouts, but his record undersells him: a draft-refusal exile stole three-and-a-half prime years, and he returned to win the title twice more, becoming the first three-time lineal heavyweight champion. He beat a murderer's row of champions, Sonny Liston, Joe Frazier, George Foreman and Ken Norton, in fights that defined the sport: the 1964 Liston upset, the Fight of the Century, the Rumble in the Jungle, and the Thrilla in Manila. As a young heavyweight he moved and jabbed like a middleweight, revolutionizing what a big man could do; as an older one he showed extraordinary chin and ring guile with the rope-a-dope. His athletic gifts, showmanship and moral courage made him the most recognized athlete on earth.
The case for Sugar Ray Leonard
The defining star of boxing's 1980s golden age, Leonard finished 36-3-1 with 25 knockouts and won world titles in five weight divisions. A 1976 Olympic gold medalist, he combined dazzling hand speed, showmanship and, when needed, real grit and power. His greatness is measured by opposition: he beat every one of the other 'Four Kings,' outlasting Thomas Hearns in a 1981 welterweight classic, breaking Roberto Duran in the No Mas rematch, and, most improbably, coming off a multi-year retirement and detached-retina layoff to out-point the fearsome undefeated Marvin Hagler for the middleweight title in 1987. That willingness to take the hardest fights, often after long absences, and win them defines his resume. He fought less often than the all-time volume leaders, and some of his verdicts were close, but few fighters have beaten a comparable concentration of Hall of Fame peers at their peak.