International Boxing Union (since 1996) World Super Middleweight title fights of Scott "The Sandman" Pemberton and Omar Sheika that became ESPN2's "Fight of the Year" in 2003 and 2004. On 7 April 2012, 7-time multiple weight class World Champion James Toney captured the vacant IBU World Heavyweight championship with a TKO over World Heavyweight Bare Knuckle Championship Holder Bobby Gunn. International Boxing Union (since 1996) The International Boxing Union (IBU) is a professional boxing sanctioning body founded in Atlanta, Georgia, United States, in 1996. It is unrelated to the International Boxing Union, based in Europe, which operated until the Second World War. Although the IBU
Undisputed championship Olympic Auditorium World Heavyweight Championship. In light of having unified three of the major world heavyweight championships of his time (as well as numerous other lesser-prestige titles) and defeating the reigning AWA World Heavyweight Champion in a non-title match (a major title that was abandoned soon after), Thesz became the Undisputed Champion for some time. From that point onward, the National Wrestling Alliance World Heavyweight Championship (the championship belt that Thesz opted to keep as the designation of all the championships he had won) became the undisputed world heavyweight title for all contenders to seek. This, however, would change over