Undisputed champion recognised a different champion. The disputes were usually short-lived as a lucrative fight would be organised between the rival champions. The longest split was ten years, of the middleweight title, between Mickey Walker's move up to heavyweight in 1931 and NBA champion Tony Zale's defeat of NYSAC contender Georgie Abrams in 1941. An early use of "undisputed" appears in a "New York Times" preview of the 1941 fight. The growing popularity of boxing outside of the USA led to creation of various boxing organizations, each strengthening their influence (most notably BBBofC) and having their own champion. This resulted in a
World Boxing Association titles in the same weight class as a "Super Champion", "Unified Champion", or "Undisputed Champion". This applies even if the WBA title is not one of the titles held by the "Undisputed Champion." In September 2008 for example, Nate Campbell was recognized as the WBA's "Undisputed Champion" at lightweight due to holding the WBO and IBF titles as well, while the WBA's "Regular" champion was Yusuke Kobori. If a fighter with multiple titles also holds the WBA's title, the fighter is promoted to "Super Champion" and the WBA title—which is then referred to as the "Regular" title—becomes vacant for competition