- Paddy Duffy
(1889?1890)
- Mysterious Billy Smith
(1892?1894)
- Tommy Ryan
(1894?1898)
- Mysterious Billy Smith
(1898?1900)
- James Rube Ferns
(1900)
- Matty Matthews
(1900?1901)
- James Rube Ferns
(1901)
- Joe Walcott
(1901?1906)
- Honey Mellody
(1906?1907)
- Mike Twin Sullivan
(1907?1908)
- Harry Lewis
(1908?1911)
- Matt Wells
(1914?1915)
- Mike Glover
(1915)
- Jack Britton
(1915)
- Ted Lewis
(1915?1916)
- Jack Britton
(1916?1917)
- Ted Lewis
(1917?1919)
- Jack Britton
(1919?1922)
- Mickey Walker
(1922?1926)
- Pete Latzo
(1926?1927)
- Joe Dundee
(1927?1929)
- Jackie Fields
(1929?1930)
- Jack Thompson
(1930)
- Tommy Freeman
(1930?1931)
- Jack Thompson
(1931)
- Lou Brouillard
(1931?1932)
- Jackie Fields
(1932?1933)
- Young Corbett III
(1933)
- Jimmy McLarnin
(1933?1934)
- Barney Ross
(1934)
- Jimmy McLarnin
(1934?1935)
- Barney Ross
(1935?1938)
- Henry Armstrong
(1938?1940)
- Fritzie Zivic
(1940?1941)
- Freddie Cochrane
(1941?1946)
- Marty Servo
(1946)
- Sugar Ray Robinson
(1946?1950)
- Johnny Bratton
(1951)
- Kid Gavilan
(1951?1954)
- Johnny Saxton
(1954?1955)
- Tony DeMarco
(1955)
- Carmen Basilio
(1955?1956)
- Johnny Saxton
(1956)
- Carmen Basilio
(1956?1957)
- Virgil Akins
(1958)
- Don Jordan
(1958?1960)
- Benny Paret
(1960?1961)
- Emile Griffith
(1961)
- Benny Paret
(1961?1962)
- Emile Griffith
(1962?1963)
- Luis Rodriguez
(1963)
- Emile Griffith
(1963?1965)
- Curtis Cokes
(1966?1969)
- Jose Napoles
(1969?1970)
- Billy Backus
(1970?1971)
- Jose Napoles
(1971?1975)
- Jose Napoles
(1975, WBC)
- Angel Espada
(1975?1976, WBA)
- John H. Stracey
(1975?1976, WBC)
- Carlos Palomino
(1976?1979, WBC)
- Pipino Cuevas
(1976?1980, WBA)
- Wilfred Benitez
(1979, WBC)
- Sugar Ray Leonard
(1979?1980, WBC)
- Roberto Duran
(1980, WBC)
- Thomas Hearns
(1980?1981, WBA)
- Sugar Ray Leonard
(1980?1981, WBC)
- Sugar Ray Leonard
(1981?1982)
- Donald Curry
(1983?1984, WBA)
- Donald Curry
(1984?1985, WBA i IBF)
- Milton McCrory
(1983?1985, WBC)
- Donald Curry
(1985?1986)
- Lloyd Honeyghan
(1986?1987)
- Mark Breland
(1987, WBA)
- Marlon Starling
(1987?1988, WBA)
- Jorge Vaca
(1987?1988, WBC)
- Lloyd Honeyghan
(1988?1989, WBC)
- Simon Brown
(1988?1991, IBF)
- Tomas Molinares
(1988, WBA)
- Mark Breland
(1989?1990, WBA)
- Marlon Starling
(1989?1990, WBC)
- Genaro Leon
(1989, WBO)
- Manning Galloway
(1989?1993, WBO)
- Aaron Davis
(1990?1991, WBA)
- Maurice Blocker
(1990?1991, WBC)
- Meldrick Taylor
(1991?1992, WBA)
- Simon Brown
(1991, WBC)
- Maurice Blocker
(1991?1993, IBF)
- James McGirt
(1991?1993, WBC)
- Crisanto Espana
(1992?1994, WBA)
- Gert Bo Jacobsen
(1993, WBO)
- Pernell Whitaker
(1993?1997, WBC)
- Felix Trinidad
(1993?1999, IBF)
- Eamonn Loughran
(1993?1996, WBO)
- Ike Quartey
(1994?1998, WBA)
- Jose Luis Lopez
(1996, WBO)
- Michael Lowe
(1997, WBO)
- Oscar de la Hoya
(1997?1999, WBC)
- Ahmed Kotiev
(1998?2000, WBO)
- James Page
(1998?2000, WBA)
- Felix Trinidad
(1999?2000, WBC i IBF)
- Daniel Santos
(2000?2002, WBO)
- Shane Mosley
(2000?2002, WBC)
- Andrew Lewis
(2001?2002, WBA)
- Vernon Forrest
(2001, IBF)
- Vernon Forrest
(2002?2003, WBC)
- Antonio Margarito
(2002?2007, WBO)
- Ricardo Mayorga
(2002?2003, WBA)
- Michele Piccirillo
(2002?2003, IBF)
- Ricardo Mayorga
(2003, WBA i WBC)
- Cory Spinks
(2003, IBF)
- Cory Spinks
(2003?2005, WBA, WBC i IBF)
- Zab Judah
(2005?2006, WBA, WBC i IBF)
- Zab Judah
(2006, IBF)
- Carlos Manuel Baldomir
(2006, WBC)
- Floyd Mayweather Jr.
(2006, IBF)
- Ricky Hatton
(2006, WBA)
- Kermit Cintron
(2006?2008, IBF)
- Floyd Mayweather Jr.
(2006?2008, WBC)
- Miguel Cotto
(2006?2008, WBA)
- Paul Williams
(2007?2008, WBO)
- Carlos Quintana
(2008, WBO)
- Antonio Margarito
(2008, IBF)
- Paul Williams
(2008, WBO)
- Andre Berto
(2008?2011, WBC)
- Antonio Margarito
(2008?2009, WBA)
- Joshua Clottey
(2008?2009, IBF)
- Shane Mosley
(2009?2010, WBA)
- Miguel Cotto
(2009, WB0)
- Isaac Hlatshwayo
(2009, IBF)
- Manny Pacquiao
(2009?2012, WBO)
- Dejan Zavec
(2009?2011, IBF)
- Wjaczesław Senczenko
(2010?2012, WBA)
- Victor Ortiz
(2011, WBC)
- Andre Berto
(2011, IBF)
- Floyd Mayweather Jr.
(2011?2014, WBC)
- Paul Malignaggi
(2012?2013, WBA)
- Randall Bailey
(2012, IBF)
- Timothy Bradley
(2012?2014, WBO)
- Devon Alexander
(2012?2013, IBF)
- Adrien Broner
(2013, WBA)
- Shawn Porter
(2013?2014, IBF)
- Marcos Maidana
(2013?2014, WBA)
- Manny Pacquiao
(2014?2015, WBO)
- Floyd Mayweather Jr.
(2014?2015, WBA Super i WBC)
- Kell Brook
(od 2014, IBF)
- Keith Thurman
(od 2015, WBA)
- Floyd Mayweather Jr.
(2015, WBA Super, WBC i WBO)
- Floyd Mayweather Jr.
(od 2015, WBA Super i WBC)
- Timothy Bradley
(od 2015, WBO)
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