Middleweight World Championship Series Middleweight World Championship Series The Middleweight World Championship Series was a boxing round-robin tournament staged by Don King Productions. The goal of the series was to produce a unified Middleweight boxing champion. The victor took the WBC, WBA, IBF and vacant Ring Magazine 160-pound belts home, and became the first undisputed middleweight king since Marvellous Marvin Hagler held the distinction from 1979 until 1987. The victor was also awarded a specially commissioned "Sugar" Ray Robinson trophy. The contenders in the tournament were William Joppy(WBA champion), Keith Holmes(WBC champion), Bernard Hopkins(IBF champion), and Félix Trinidad. The semifinals pitted Trinidad against Joppy
World Series of Boxing and Bantamweight (50–54 kg). In the fourth season (2013–14), the number of weight classes was increased to ten, and they are same as in amateur (Olympic) boxing. Teams played in the WSB: All WSB Live shows are distributed worldwide by Fighting Spirit. World Series of Boxing The World Series of Boxing or WSB is an international boxing tournament that allows amateur boxers to compete professionally while maintaining amateur status and Olympic eligibility. It is organised by AIBA. Unlike amateur boxing, competitors taking part in sanctioned World Series of Boxing bouts must be bare-chested and are not permitted to wear protective