- Jack (Nonpareil) Dempsey
(1890?1891)
- Bob Fitzsimmons
(1891?1894)
- Kid McCoy
(1896?1897)
- Tommy Ryan
(1898?1906)
- Stanley Ketchel
(1907?1908)
- Billy Papke
(1908)
- Stanley Ketchel
(1908?1910)
- Frank Klaus
(1912?1913)
- George Chip
(1913?1914)
- Al McCoy
(1914?1917)
- Mike O’Dowd
(1917?1920)
- Johnny Wilson
(1920?1923)
- Harry Greb
(1923?1926)
- Tiger Flowers
(1926)
- Mickey Walker
(1926?1931)
- Gorilla Jones
(1932, NBA)
- Marcel Thil
(1932, NBA)
- Vince Dundee
(1933?1934)
- Teddy Yarosz
(1934?1935)
- Babe Risko
(1935?1936)
- Freddie Steele
(1936?1938)
- Al Hostak
(1938, NBA)
- Solly Krieger
(1938?1939, NBA)
- Al Hostak
(1939?1940, NBA)
- Tony Zale
(1940?1941, NBA)
- Tony Zale
(1941?1947)
- Rocky Graziano
(1947?1948)
- Tony Zale
(1948)
- Marcel Cerdan
(1948?1949)
- Jake LaMotta
(1949?1951)
- Sugar Ray Robinson
(1951)
- Randy Turpin
(1951)
- Sugar Ray Robinson
(1951?1952)
- Bobo Olson
(1953?1955)
- Sugar Ray Robinson
(1955?1957)
- Gene Fullmer
(1957)
- Sugar Ray Robinson
(1957)
- Carmen Basilio
(1957?1958)
- Sugar Ray Robinson
(1958?1960)
- Paul Pender
(1960?1961)
- Terry Downes
(1961?1962)
- Paul Pender
(1962?1963)
- Dick Tiger
(1962?1963, WBA)
- Dick Tiger
(1963)
- Joey Giardello
(1963?1965)
- Dick Tiger
(1965?1966)
- Emile Griffith
(1966?1967)
- Nino Benvenuti
(1967)
- Emile Griffith
(1967?1968)
- Nino Benvenuti
(1968?1970)
- Carlos Monzon
(1970?1974)
- Carlos Monzon
(1974?1976, WBA)
- Rodrigo Valdez
(1974?1976, WBC)
- Carlos Monzon
(1976?1977)
- Rodrigo Valdez
(1977?1978)
- Hugo Corro
(1978?1979)
- Vito Antuofermo
(1979?1980)
- Alan Minter
(1980)
- Marvin Hagler
(1980?1983)
- Marvin Hagler
(1983?1987)
- Sugar Ray Leonard
(1987, WBC)
- Frank Tate
(1987?1988, IBF)
- Sumbu Kalambay
(1987?1989, WBA)
- Thomas Hearns
(1987?1988, WBC)
- Iran Barkley
(1988?1989, WBC)
- Michael Nunn
(1988?1991, IBF)
- Roberto Duran
(1989, WBC)
- Doug DeWitt
(1989?1990, WBO)
- Mike McCallum
(1989?1991, WBA)
- Nigel Benn
(1990, WBO)
- Chris Eubank
(1990?1991, WBO)
- Julian Jackson
(1990?1993, WBC)
- James Toney
(1991?1993, IBF)
- Gerald McClellan
(1991?1992, WBO)
- Reggie Johnson
(1992?1993, WBA)
- Gerald McClellan
(1993?1994, WBC)
- Chris Pyatt
(1993?1994, WBO)
- Roy Jones Jr.
(1993?1994, IBF)
- John David Jackson
(1993?1994, WBA)
- Steve Collins
(1994?1995, WBO)
- Jorge Fernando Castro
(1994?1995, WBA)
- Julian Jackson
(1995, WBC)
- Bernard Hopkins
(1995?2001, IBF)
- Lonnie Bradley
(1995?1997, WBO)
- Quincy Taylor
(1995?1996, WBC)
- Shinji Takehara
(1995?1996, WBA)
- Keith Holmes
(1996?1998, WBC)
- William Joppy
(1996?1997, WBA)
- Julio Cesar Green
(1997?1998, WBA)
- Otis Grant
(1997?1998, WBO)
- William Joppy
(1998?2001, WBA)
- Hacine Cherifi
(1998?1999, WBC)
- Bert Schenk
(1999, WBO)
- Keith Holmes
(1999?2001, WBC)
- Jason Matthews
(1999, WBO)
- Armand Krajnc
(1999?2002, WBO)
- Bernard Hopkins
(2001, WBC i IBF)
- Felix Trinidad
(2001, WBA)
- Bernard Hopkins
(2001?2004, WBA, WBC & IBF)
- Harry Simon
(2002, WBO)
- Hector Javier Velazco
(2003, WBO)
- Felix Sturm
(2003?2004, WBO)
- Maselino Masoe
(2004?2006, WBA)
- Oscar de la Hoya
(2004, WBO)
- Bernard Hopkins
(2004?2005, Uniwersalny)
- Jermain Taylor
(2005, Uniwersalny)
- Jermain Taylor
(2005?2006, WBA, WBC i WBO)
- Arthur Abraham
(2005?2009, IBF)
- Jermain Taylor
(2006?2007, WBC i WBO)
- Felix Sturm
(2006, WBA)
- Javier Castillejo
(2006?2007, WBA)
- Felix Sturm
(2007?2012, WBA i WBA Super)
- Kelly Pavlik
(2007?2010, WBC i WBO)
- Sebastian Sylvester
(2009?2011, IBF)
- Sergio Gabriel Martinez
(2010, WBC i WBO)
- Sergio Gabriel Martinez
(2010?2011, WBC)
- Dmitrij Pirog
(2010?2012, WBO)
- Giennadij Gołowkin
(2010?2014, WBA)
- Sebastian Zbik
(2011, WBC)
- Daniel Geale
(2011?2012, IBF)
- Julio Cesar Chavez Jr.
(2011?2012, WBC)
- Hassan N'Dam N'Jikam
(2012, WBO)
- Daniel Geale
(2012?2013, IBF i WBA Super)
- Sergio Gabriel Martinez
(2012?2014, WBC)
- Peter Quillin
(2012?2014, WBO)
- Darren Barker
(2013, IBF)
- Felix Sturm
(2013?2014, IBF)
- Sam Soliman
(2014, IBF)
- Miguel Cotto
(od 2014, WBC)
- Giennadij Gołowkin
(od 2014, WBA Super)
- Daniel Jacobs
(od 2014, WBA)
- Jermain Taylor
(2014?2015, IBF)
- Andy Lee
(od 2014, WB0)
- David Lemieux
(od 2015, IBF)
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