There have been thousands of professional boxers over the years but most of them, even the greats, lost a bout or two along the way. Retiring undefeated in the sport is quite an accomplishment. This list features the only 13 boxers in history who were world champions and managed to finish their careers without losing a fight.
Floyd Mayweather Jr. (49-0) was also an undefeated titleholder, but he’ll be taking on Conor McGregor of the UFC on August 26th. The list may grow in the future as there are currently several world champions who are yet to taste defeat. These include Anthony Joshua, Terence Crawford, Joseph Parker, Deontay Wilder, Andre Ward, Gilberto Ramirez, Keith Thurman, Errol Spence Jr., and Gennady Golovkin.