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
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