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
IWA Undisputed World Heavyweight Championship Heavyweight Championship. On March 1, 2012, the challenge was accepted by Pérez and Rondón in a backstage segment. At Clash of the Titans, Bonecrusher defeated Cotto, becoming Unified Champion. In 2012, IWA folded, so the title was vacated. During the following years, the Undisputed World Heavyweight Championship made appearances in a number of unrelated media. In early 2015, while Vega was part of La Radio PR's "Más Allá del Ring" show, the title made appearances as part of the studio's decore along the Intercontinental and World Tag Team Championships. In autumn, the IWA Undisputed World Heavyweight Championship was taken to