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
Alan Minter out Maurice Thomas in six rounds. Minter won five fights in a row by knockout and, in 1973, Pat Dwyer became the first boxer to go the distance with him, over eight rounds in London. Minter won his next five fights, three by knockout, before tasting defeat for the first time after the referee stopped the fight in the eighth round to "Scottish" Don McMillan due to bad cuts suffered by Minter. Two more wins followed before facing Jan Magziarz, who beat him twice in a row (once in the eighth and once in the sixth) again due to cuts.