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 champion Undisputed champion In professional boxing, the undisputed champion of a weight class is usually a boxer who is recognized as the world champion at that class by each boxing organization, However, there are no officially declared necessary conditions needed to become an undisputed champion, as the major boxing organizations refer to all boxers holding at least two world titles in their respective division as "unified champions". Prior to the 1960s, most champions were "undisputed", although the term was rarely used (it does not appear in one 1970 "Boxing Dictionary"). Early boxing champions at various weight divisions were established by acclamation