Heavyweight
Evander Holyfield - Donovan 'Razor' Rudduck
Tommy Morrison - Michael Moorer
'Razor' Rudduck - Michael Moorer
Tommy Morrison - Evander Holyfield
'Razor' Rudduck - Andrew Golota
Tommy Morrison - Mike Tyson
Vitali Klitschko - Lennox Lewis II
Riddick Bowe - Mike Tyson
Andrew Golota - Michael Moorer
Andrew Golota - Tommy Morrison
Riddick Bowe - Michael Moorer
George Foreman - Larry Holmes
George Foreman - Earnie Shavers
Rocky Marciano - Floyd Patterson
Rocky Marciano - Ingemar Johanssen
Wladimir Klitschko - Corrie Sanders II
Wladimir Klitschko - Sam Peter II
Wladimir Klitschko - David Haye
Cris Arreola - David Haye
Joe Mesi - Domonick Guinn (before Mesi got injured and Guinn became a loser)
Joe Frazier - Ken Norton

Light Heavyweight/Super Middleweight
Roy Jones Jr. - Chris Eubank
Roy Jones Jr. - Daruisz Michalzweski
Roy Jones Jr. - Joe Calzaghe
Roy Jones Jr. - Nigel Benn
Bernard Hopkins - James Toney
Roy Jones Jr. - Kelly Pavlik
Bernard Hopkins - Kelly Pavlik
Bernard Hopkins - Nigel Benn
Bernard Hopkins - Svenn Ottke
Roy Jones Jr. - Svenn Ottke
James Toney - Chris Eubank
James Toney - Nigel Benn
Roy Jones Jr. - Steve Collins

Middleweight/Jr. Middleweight
Oscar De la Hoya - Shane Mosley III
Oscar De la Hoya - Felix Trinidad II
Felix Trinidad - Shane Mosley
Felix Trinidad - Vernon Forrest
Fernando Vargas - Vernon Forrest
Shane Mosley - Cory Spinks

Welterweight/Jr. Welterweight
Miguel Cotto - Ricky Hatton
Miguel Cotto - Floyd Mayweather Jr.
Ricky Hatton - Zab Judah
Roberto Duran - Aaron Pryor
Ray Leonard - Aaron Pryor

Lightweight/Super Featherweight
Julio Cesar Chavez - Salvador Sanchez
Alexis Arguello - Julio Cesar Chavez
Alexis Arguello - Salvador Sanchez
Roberto Duran - Alexis Arguello