The distance (boxing) 19, 1987. While the International Boxing Federation, which had recently broken away from the WBA, continued to hold onto the position there was no documented medical evidence to show a 15-round fight is more dangerous than a 12-round fight, they eventually voted to shorten their championship distance to 12 rounds as well on June 3, 1988. The last heavyweight 15-rounder title fight was on October 16, 1987 between Mike Tyson and Tyrell Biggs. The last middleweight 15-rounder title fight was a World Boxing Board title match on June 7, 1997 in which Jose Alfredo Flores won a split decision over
Heavyweight only major titles, and it does not include lineal championships after 1921. Keys: Below is a list of longest reigning heavyweight champions in boxing measured by the individual's longest reign. The list includes both "The Ring" and lineal championships. Keys: The heavyweight division in MMA generally groups fighters between 205 and 265 lb (93 and 120 kg). Heavyweight is also the title of a documentary film that documented the fight camp of Fabricio Werdum when he became the UFC Heavyweight Champion. The term "world heavyweight" in modern wrestling generally refers to a champion wrestler who is seen as a prominent