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
Undisputed championship championship unification. Gotch wrestled for several years before retiring as undisputed champion Other wrestlers who were recognized as the only major World Champion following Gotch's retirement were Earl Caddock, Joe Stecher, Ed "Strangler" Lewis, Stanislaus Zbyszko, and Wayne Munn. The championship became disputed in the late 1920s, and remained that way for over 20 years, when several major World Heavyweight Championships split from the primary title (namely, Boston's American Wrestling Association World Heavyweight Championship, the National Boxing Association (later, National Wrestling Association) World Championship of Wrestling, and the New York State Athletic Commission World Heavyweight Championship). Other governing bodies would