Question: who has the most undefeated record in boxing
Answer: Boxer Record Weight class Title ( s ) Championship years Title defenses Notes Jimmy Barry 59 -- 0 -- 9 ( 2 ) Bantamweight World 1894 -- 1899 6 ( 3 draws ) Joe Calzaghe 46 -- 0 -- 0 ( 0 ) Super middleweight WBO 1997 -- 2008 21 Vacated title to move up to light heavyweight .