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
AIBA World Boxing Championships medal count among all boxers (including these who are not included in these tables) per type. In 2018, Mary Kom defeated Ukrainian boxer Hanna Okhota with a 5-0 win in the 48 kg weight category, she is now tied with Cuban legend Felix Savon’s haul of six golds. AIBA World Boxing Championships The AIBA World Boxing Championships and the AIBA Women's World Boxing Championships are biennial amateur boxing competitions organised by the International Boxing Association (AIBA), which is the sport governing body. Alongside the Olympic boxing programme, it is the highest level of competition for the sport. The championships was