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
USA Boxing Union) Boxing championships. The Championships crown a United States Amateur Champion in each of the sanctioned weight classes. USA Boxing organizes the USA Knockouts team in the World Series of Boxing. Weight Classes - Elite Men Weight Classes - Elite Women Below are the lists of the national amateur champions, by division: USA Boxing USA Boxing is the national governing body for Olympic-style amateur boxing. It is overseen by the United States Olympic Committee and the International Boxing Association (AIBA), which sets its rules. Headquartered in Colorado Springs, CO, USA Boxing is a non-profit organization responsible for the administration, development