Try to make a list of Undisputed World Champions throughout history. I see undisputed as holding at least 75% of the major titles. So from 1984 onwards its having 3 of the belts, from before 1984 its having 2 of the belts. Only WBC, WBA, WBO, IBF counted. Heavyweight Lennox Lewis 2002 Cruiserweight David Haye 2008 Super Middleweight Joe Calzaghe 2007 Middleweight Alan Minter 1980 Welterweight Lloyd Honeyghan 1986 Lightweight Ken Buchanan 1971
David Haye - I dispute. He never fought Cunnigham - he didnt hang around at the weight. Onyl 2 world title fights he had at the weight - and one was against a guy who didnt really belong in the same ring as him,. Cunningham might be boring and ordinary - but he is proven world class.
How does this work again? you are the unified champ if you hold two of the belts? so what happens if another fighter hold the other 2? and you are the undisputed champ if you hold at least 3?
Cunningham who lost his 1st fight after Haye left the division? He won the WBC, WBA and WBO titles. If thats your rule Calzaghe also wouldn't count.
Between 1963 and 1984 there were 2 Belts. If you hold both your undisputed. From 1984 there were 4 belts. If you held 3 your undisputed.
Bob Fitzsimmons was undisputed at Middleweight then Heavyweight then Light-Heavyweight. Freddie Walsh was undisputed Lightweight champion. Benny Lynch, Jackie Paterson and Peter Kane were all Flyweight champions.