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
Weight class (boxing) different class if there is space in the tournament. At major events such as boxing at the Olympics, there is a limit of one boxer per country per weight class. A boxer may fight different bouts at different weight classes. The trend for professionals is to move up to a higher class as they age. Winning titles at multiple weight classes to become a "multiple champion" is considered a major achievement. In amateur boxing, bouts are much shorter and much more frequent, and boxers fight at their "natural" weight. One boxer is said to be better "pound for pound" than