Il primo grande campione dei pesi massimi   Jack Dempsey il 14 settembre del 2023  mantenne  i titoli  Nba e Nysac e aggiunse  la cintura  di The ring. Il match si svolse a New York e l'avvversario battuto era il gigante  argentino  Luis Angel Firpo . Iniziava una nuova era  quella dei campioni "totali "che negli states chiamarono  "undisputed".

Jack Dempsey - NYSAC, NBA - July 1923 to September 1926
Gene Tunney - NYSAC, NBA - September 1926 to July 1928
Max Schmeling - NYSAC, NBA - June 1930 to January 1931
Jack Sharkey - NYSAC, NBA - June 1932 to June 1933
Primo Carnera - NYSAC, NBA - June 1933 to June 1934
Max Baer - NYSAC, NBA - June 1934 to June 1935
James J. Braddock - NYSAC, NBA - June 1935 to June 1937
Joe Louis - NYSAC, NBA - June, 1937 to March 1949
Ezzard Charles - NYSAC, NBA - September 1950 to July 1951
Jersey Joe Wollacott - NYSAC, NBA - July 1951 to September 1952
Rocky Marciano - NYSAC, NBA - September 1952 to April 1956
Floyd Patterson - NYSAC, NBA - June 1960 to September 1962
Sonny Liston - NYSAC, WBA - September 1962 to July 1963
Sonny Liston - WBC, WBA - July 1963 to February 1964
Muhammad Ali - WBC, WBA - February 1964 to September 1964
Muhammad Ali - WBC, WBA - February 1967 to April 1967
Joe Frazier - WBC, WBA - February 1970 to January 1973
George Foreman - WBC, WBA - January 1973 to October 1974
Muhammad Ali - WBC, WBA - October 1974 to February 1978
Leon Spinks - WBC, WBA - February 1978 to March 1978
Mike Tyson - WBC, WBA, IBF - August 1987 to February 1990
Buster Douglas - WBC, WBA, IBF- February 1990 to October 1990
Evander Holyfield - WBC, WBA, IBF - October 1990 to November 1992
Riddick Bowe - WBC, WBA, IBF - November 1992 to December 1992
Lennox Lewis - WBC, WBA, IBF - November 1999 to April 2000
Oleksandr Usyk - WBC, WBO, WBA, IBF - May 2024 to - June 2024

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