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
Chess boxing Chess Boxing Organisation (WCBO) that was founded in Berlin shortly before. Dutch middleweight fighters Iepe Rubingh and Jean Louis Veenstra faced each other in the ring. After his opponent exceeded the chess time limit, Rubingh won the fight in the 11th round going down in the history books as the first ever World Chess Boxing Champion. The same goes for the Chess Boxing Club Berlin, created in the following year (2004), that is the first of its kind making Berlin the birthplace of chessboxing. Two years after the first world championship, the first European Chess Boxing Championship took place in