questionedithistorytranslationsCurrent version This is the accepted version. added by globalquiz.org June 13, 2013, 11:07 p.m. How many fights did Rocky Marciano lose? 0123Rocky Marciano is the only professional boxer to have retired undefeated holding the world heavyweight title. His record was 49 wins (43 KOs), 0 draws, 0 losses.globalquiz.orgShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this question5Very interesting!reach: rather globalboxinghistory of sportsportVotes +5 Very interesting! globalquiz.org