Lehká váha

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Jack McAuliffe (The Napoleon of The Prize Ring) (1886-1893, penzionován, neporažen)
George "Kid" Lavigne (1896-1899)
Frank Erne (1899-1902)
Joe Gans (Old Master) (1902-1904, uvolnil titul)
Jimmy Britt (1904-1905)
Battling Nelson (The Durable Dane) (1905-1906)
Joe Gans (Old Master) (1906-1908)
Battling Nelson (The Durable Dane) (1908-1910)
Willie Ritchie (1912-1914)
Freddie Welsh (1914-1917)
Benny Leonard (1917 do 15.1. 1925, penzionován)
Jimmy Goodrich (1925)
Rocky Kansas (1925-1926)
Sammy Mandell (1926-1930)
Al Singer (1930)
Tony Canzoneri(1930-1933)
Barney Ross (vzdal se titulu v roce 1933)
Tony Canzoneri(1935-1936)
Lou Ambers (1936-1938)
Henry Armstrong (1938-1939)
Lou Ambers (1939-1940)
Lew Jenkins (1940-1941)
Sammy Angott (1941-1942, uvolnil titul 13. listopadu 1942)
Ike Williams (1947-1951)
Jimmy Carter (1951-1952)
Lauro Salas (1952)
Jimmy Carter (1952-1954)
Paddy De Marco (1954)
Jimmy Carter (1954-1955)
Wallace "Bud" Smith (1955-1956)
Joe Brown (1956-1962)
Carlos Ortiz (1962-1965)
Ismael Laguna (1965)
Carlos Ortiz (1965-1968)
Carlos Teo Cruz (1968-1969)
Mando Ramos (1969-1970)
Ismael Laguna (1970)
Ken Buchanan (1970-1972)
Roberto Duran (1972-1979, uvolnil titul)
Alexis Arguello (1981-1982)
Julio Cesar Chavez (1987-1989, uvolnil titul)
Pernell Whitaker (uvolnil titul 1992)
Angel Gonzalez (1993 - 1995)
Jean Baptiste Mendy (1996 -1997)
Jose Luis Castillo (2000 - 2001)
Floyd Mayweather (2002 - 2003)
Jose Luis Castillo (WBC), Juan Diaz (WBA, IBF) (2004 - 2005)
Juan Diaz (WBA), Diego Corrales (WBC), Leavander Johnson (IBF) (2006)

Pěst byla nejpřirozenější zbraní primitivních lidí.