Longest reigning boxing world champion
Who
Joe Louis
Where
United States ()
The Joe Louis heavyweight duration record of 11 yr 252 days stands for all divisions. Due to the numerous Boxing Associations (There are 5 with about 12 divisions in each!) that exist these can vary but very generally speaking the present boxing divisions are
Flyweight
Bantamweight
Featherweight
Junior lightweight
Lightweight
Junior welterweight
Welterweight
Junior middleweight
Middleweight
Light heavyweight
Heavyweight
Joe Louis's reign started on 22 June 1937, when he knocked out James Joseph Braddock (USA) in the eighth round at Chicago, Illinois, USA, until announcing his retirement on 1 March 1949. During his reign Louis made a record 25 defences of his title.