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
Weight class (boxing) who is over the weight limit may strip naked to make the weight if the excess is minimal; otherwise, in a professional bout, one can try again later, typically after losing weight in the interim through dehydration by vigorous exercise in a steam room. If the excess weight is too great, the effort expended trying to "make weight" will make the boxer unfit for the fight itself. In such cases the fight may be cancelled with the over-weight boxer sanctioned or the fight may proceed as a catchweight non-title fight. The International Boxing Federation (IBF) has a unique weigh-in policy