User:PinoyBoxing11/sandbox2

The Corbett-Fitzsimmons Fight, March 1897

This is a list of lineal boxing world champions. A list of lineal champions in professional boxing is maintained by the historical research boxing website Cyber Boxing Zone (CBZ), with input from boxing historian Tracy Callis of the International Boxing Research Organization (IBRO) which was founded in 1982 for the purposes of establishing an accurate history of boxing and compiling complete and accurate boxing records. The historical list of lineal champions were first published in 1994, and are retrospective to the introduction of the Marquess of Queensberry Rules in 1885. Since 2012, lineal champions are predetermined by the Transnational Boxing Rankings Board, which promotes the concept of a singular world champion per weight class. TBRB provides the lineal championship rankings and is recognized by CBZ for maintaining the list of lineal boxing world champions.

Heavyweight

Number	Champion	Reign
1	John L. Sullivan (def. Dominick McCaffrey)	August 29, 1885 – September 7, 1892
2	James J. Corbett	September 7, 1892 – March 17, 1897
3	Bob Fitzsimmons	March 17, 1897 – June 9, 1899
4	James J. Jeffries	June 9, 1899 – May 15, 1905 (retired)
5	Marvin Hart (def. Jack Root)	July 3, 1905 – February 23, 1906
6	Tommy Burns	February 23, 1906 – December 26, 1908
7	Jack Johnson	December 26, 1908 – April 5, 1915
8	Jess Willard	April 5, 1915 – July 4, 1919
9	Jack Dempsey	July 4, 1919 – September 23, 1926
10	Gene Tunney	September 23, 1926 – July 31, 1928 (retired)
11	Max Schmeling (def. Jack Sharkey)	June 12, 1930 – June 21, 1932
12	Jack Sharkey	June 21, 1932 – June 29, 1933
13	Primo Carnera	June 29, 1933 – June 14, 1934
14	Max Baer	June 14, 1934 – June 13, 1935
15	James J. Braddock	June 13, 1935 – June 22, 1937
16	Joe Louis	June 22, 1937 – February 28, 1949 (retired)
17	Ezzard Charles (def. Jersey Joe Walcott)	June 22, 1949 – July 18, 1951
18	Jersey Joe Walcott	July 18, 1951 – September 23, 1952
19	Rocky Marciano	September 23, 1952 – April 27, 1956 (retired)
20	Floyd Patterson (def. Archie Moore)	November 30, 1956 – June 26, 1959
21	Ingemar Johansson	June 26, 1959 – June 20, 1960
22	Floyd Patterson	June 20, 1960 – September 25, 1962
23	Sonny Liston	September 25, 1962 – February 25, 1964
24	Cassius Clay	February 25, 1964 – February 1, 1970 (retired)
25	Joe Frazier (def. Jimmy Ellis)	February 16, 1970 – January 22, 1973
26	George Foreman	January 22, 1973 – October 30, 1974
27	Muhammad Ali	October 30, 1974 – February 15, 1978
28	Leon Spinks	February 15, 1978 – September 15, 1978
29	Muhammad Ali	September 15, 1978 – June 27, 1979 (retired)
30	Larry Holmes (def. Muhammad Ali)	October 2, 1980 – September 21, 1985
31	Michael Spinks	September 21, 1985 – June 27, 1988
32	Mike Tyson	June 27, 1988 – February 11, 1990
33	James "Buster" Douglas	February 11, 1990 – October 25, 1990
34	Evander Holyfield	October 25, 1990 – November 13, 1992
35	Riddick Bowe	November 13, 1992 – November 6, 1993
36	Evander Holyfield	November 6, 1993 – April 22, 1994
37	Michael Moorer	April 22, 1994 – November 5, 1994
38	George Foreman	November 5, 1994 – November 22, 1997
39	Shannon Briggs	November 22, 1997 – March 28, 1998
40	Lennox Lewis	March 28, 1998 – April 22, 2001
41	Hasim Rahman	April 22, 2001 – November 17, 2001
42	Lennox Lewis	November 17, 2001 – February 6, 2004 (retired)
43	Wladimir Klitschko (def. Ruslan Chagaev)	June 20, 2009 – November 28, 2015
44	Tyson Fury	November 28, 2015 – October 18, 2016 (retired)
45	Tyson Fury (def. Deontay Wilder)	February 22, 2020 – August 15, 2022 (retired)
46	Oleksandr Usyk (def. Anthony Joshua)	August 20, 2022 – present

Bridgerweight

Number	Champion	Reign
1	Bobby Czyz (def. Richard Jackson)	December 5, 1995 – May 10, 1996 (vacated)
2	Orlin Norris (def. Adolpho Washington)	May 22, 1998 – June 26, 1999 (vacated)
3	James Toney (def. Saúl Montana)	March 29, 2001 – July 30, 2001 (vacated)
4	Óscar Rivas (def. Ryan Rozicki)	October 22, 2021 – January 5, 2023 (vacated)
5	Łukasz Różański (def. Alen Babić)	April 22, 2023 – May 24, 2024
6	Lawrence Okolie	May 24, 2024 – October 8, 2024 (vacated)
?	Needs more research (IBA, IBC, WBU)	Date – Date

Cruiserweight

Number	Champion	Reign
1	Marvin Camel (def. Mate Parlov)	March 31, 1980 – November 25, 1980
2	Carlos de León	November 25, 1980 – June 27, 1982
3	S. T. Gordon	June 27, 1982 – July 17, 1983
4	Carlos de León	July 17, 1983 – June 6, 1985
5	Alfonso Ratliff	June 6, 1985 – September 21, 1985
6	Bernard Benton	September 21, 1985 – March 22, 1986
7	Carlos de León	March 22, 1986 – April 9, 1988
8	Evander Holyfield	April 9, 1988 – December 9, 1988 (vacated)
9	O'Neil Bell (def. Jean-Marc Mormeck)	January 7, 2006 – March 17, 2007
10	Jean-Marc Mormeck	March 17, 2007 – November 10, 2007
11	David Haye	November 10, 2007 – July 22, 2008 (vacated)
12	Tomasz Adamek (def. Steve Cunningham)	December 11, 2008 – October 18, 2009 (vacated)
13	Oleksandr Usyk (def. Murat Gassiev)	July 21, 2018 – October 15, 2019 (vacated)
14	Mairis Briedis (def. Yuniel Dorticos)	September 26, 2020 – July 2, 2022
15	Jai Opetaia	July 2, 2022 – present

Light heavyweight

Number	Champion	Reign
1	Jack Root (def. Kid McCoy)	April 22, 1903 – July 4, 1903
2	George Gardner	July 4, 1903 – November 25, 1903
3	Bob Fitzsimmons	November 25, 1903 – December 20, 1905
4	Philadelphia Jack O'Brien	December 20, 1905 – December 31, 1905 (vacated)
5	Jack Dillon (def. Battling Levinsky)	April 14, 1914 – October 24, 1916
6	Battling Levinsky	October 24, 1916 – October 12, 1920
7	Georges Carpentier	October 12, 1920 – September 24, 1922
8	Battling Siki	September 24, 1922 – March 17, 1923
9	Mike McTigue	March 17, 1923 – May 30, 1925
10	Paul Berlenbach	May 30, 1925 – July 16, 1926
11	Jack Delaney	July 16, 1926 – August 10, 1927 (vacated)
12	Tommy Loughran (def. Mike McTigue)	October 7, 1927 – September 3, 1929 (vacated)
13	Maxie Rosenbloom (def. Lou Scozza)	July 14, 1932 – November 16, 1934
14	Bob Olin	November 16, 1934 – October 31, 1935
15	John Henry Lewis	October 31, 1935 – June 19, 1939 (retired)
16	Billy Conn (def. Melio Bettina)	July 13, 1939 – June 3, 1941 (vacated)
17	Gus Lesnevich (def. Tami Mauriello)	August 26, 1941 – July 26, 1948
18	Freddie Mills	July 26, 1948 – January 24, 1950
19	Joey Maxim	January 24, 1950 – December 17, 1952
20	Archie Moore	December 17, 1952 – February 9, 1962 (vacated)
21	Harold Johnson (def. Doug Jones)	May 12, 1962 – June 1, 1963
22	Willie Pastrano	June 1, 1963 – March 30, 1965
23	José Torres	March 30, 1965 – December 16, 1966
24	Dick Tiger	December 16, 1966 – May 24, 1968
25	Bob Foster	May 24, 1968 – September 16, 1974 (retired)
26	Michael Spinks (def. Dwight Muhammad Qawi)	March 18, 1983 – November 3, 1985 (vacated)
27	Virgil Hill (def. Henry Maske)	November 23, 1996 – June 13, 1997
28	Dariusz Michalczewski	June 13, 1997 – October 18, 2003
29	Julio César González	October 18, 2003 – January 17, 2004
30	Zsolt Erdei	January 17, 2004 – November 13, 2009 (vacated)
31	Jean Pascal (def. Chad Dawson)	August 14, 2010 – May 21, 2011
32	Bernard Hopkins	May 21, 2011 – April 28, 2012
33	Chad Dawson	April 28, 2012 – June 8, 2013
34	Adonis Stevenson	June 8, 2013 – December 1, 2018
35	Oleksandr Gvozdyk	December 1, 2018 – October 18, 2019
36	Artur Beterbiev	October 18, 2019 – present

Super middleweight

Number	Champion	Reign
1	Chong-Pal Park (def. Murray Sutherland)	July 22, 1984 – March 11, 1988
2	Fulgencio Obelmejias	May 23, 1988 – May 28, 1989
3	In-Chul Baek	May 28, 1989 – March 30, 1990
4	Christophe Tiozzo	March 30, 1990 – April 5, 1991
5	Víctor Córdoba	April 5, 1991 – September 12, 1992
6	Michael Nunn	September 12, 1992 – February 26, 1994
7	Steve Little	February 26, 1994 – August 12, 1994
8	Frankie Liles	August 12, 1994 – June 12, 1999
9	Byron Mitchell	June 12, 1999 – April 8, 2000
10	Bruno Girard	April 8, 2000 – March 3, 2001 (vacated)
11	Joe Calzaghe (def. Jeff Lacy)	March 4, 2006 – September 26, 2008 (vacated)
12	Andre Ward (def. Carl Froch)	December 17, 2011 – March 16, 2016 (vacated)
13	Canelo Álvarez (def. Caleb Plant)	November 6, 2021 – present

Middleweight

Number	Champion	Reign
1	"Nonpareil" Jack Dempsey (def. George Fulljames)	July 30, 1884 – January 14, 1891
2	Bob Fitzsimmons	January 14, 1891 – October 31, 1895 (vacated)
3	Tommy Ryan (def. George Green)	February 25, 1898 – December 5, 1906 (vacated)
4	Stanley Ketchel (def. Joe Thomas)	September 2, 1907 – September 7, 1908
5	Billy Papke	September 7, 1908 – November 26, 1908
6	Stanley Ketchel	November 26, 1908 – October 15, 1910 (died)
7	Frank Klaus (def. Billy Papke)	March 5, 1913 – October 11, 1913
8	George Chip	October 11, 1913 – April 7, 1914
9	Al McCoy	April 7, 1914 – November 14, 1917
10	Mike O'Dowd	November 14, 1917 – May 6, 1920
11	Johnny Wilson	May 6, 1920 – August 31, 1923
12	Harry Greb	August 31, 1923 – February 26, 1926
13	Tiger Flowers	February 26, 1926 – December 3, 1926
14	Mickey Walker	December 3, 1926 – June 19, 1931 (vacated)
15	Tony Zale (def. Georgie Abrams)	November 28, 1941 – July 16, 1947
16	Rocky Graziano	July 16, 1947 – June 10, 1948
17	Tony Zale	June 10, 1948 – September 21, 1948
18	Marcel Cerdan	September 21, 1948 – June 16, 1949
19	Jake LaMotta	June 16, 1949 – February 14, 1951
20	Sugar Ray Robinson	February 14, 1951 – July 10, 1951
21	Randy Turpin	July 10, 1951 – September 12, 1951
22	Sugar Ray Robinson	September 12, 1951 – December 19, 1952 (retired)
23	Carl "Bobo" Olson (def. Randy Turpin)	October 21, 1953 – December 9, 1955
24	Sugar Ray Robinson	December 9, 1955 – January 2, 1957
25	Gene Fullmer	January 2, 1957 – May 1, 1957
26	Sugar Ray Robinson	May 1, 1957 – September 23, 1957
27	Carmen Basilio	September 23, 1957 – March 25, 1958
28	Sugar Ray Robinson	March 25, 1958 – January 2, 1960
29	Paul Pender	January 2, 1960 – July 11, 1961
30	Terry Downes	July 11, 1961 – April 7, 1962
31	Paul Pender	April 7, 1962 – May 7, 1963 (retired)
32	Dick Tiger (def. Gene Fullmer)	August 10, 1963 – December 7, 1963
33	Joey Giardello	December 7, 1963 – October 21, 1965
34	Dick Tiger	October 21, 1965 – April 25, 1966
35	Emile Griffith	April 25, 1966 – April 17, 1967
36	Nino Benvenuti	April 17, 1967 – September 29, 1967
37	Emile Griffith	September 29, 1967 – March 4, 1968
38	Nino Benvenuti	March 4, 1968 – November 7, 1970
39	Carlos Monzón	November 7, 1970 – August 29, 1977 (retired)
40	Rodrigo Valdéz (def. Bennie Briscoe)	November 5, 1977 – April 22, 1978
41	Hugo Corro	April 22, 1978 – June 30, 1979
42	Vito Antuofermo	June 30, 1979 – March 16, 1980
43	Alan Minter	March 16, 1980 – September 27, 1980
44	Marvin Hagler	September 27, 1980 – April 6, 1987
45	Sugar Ray Leonard	April 6, 1987 – June 27, 1987 (vacated)
46	Michael Nunn (def. Sumbu Kalambay)	March 25, 1989 – May 10, 1991
47	James Toney	May 10, 1991 – February 13, 1993 (vacated)
48	Bernard Hopkins (def. Félix Trinidad)	September 29, 2001 – July 16, 2005
49	Jermain Taylor	July 16, 2005 – September 29, 2007
50	Kelly Pavlik	September 29, 2007 – April 17, 2010
51	Sergio Martínez	April 17, 2010 – June 7, 2014
52	Miguel Cotto	June 7, 2014 – November 21, 2015
53	Canelo Álvarez	November 21, 2015 – April 18, 2017 (vacated)
54	Canelo Álvarez (def. Gennady Golovkin)	September 15, 2018 – January 1, 2021 (vacated)

Light middleweight

Number	Champion	Reign
1	Emile Griffith (def. Ted Wright)	October 17, 1962 – February 3, 1963 (vacated)
2	Denny Moyer (def. Stan Harrington)	February 19, 1963 – April 29, 1963
3	Ralph Dupas	April 29, 1963 – September 7, 1963
4	Alessandro Mazzinghi	September 7, 1963 – June 18, 1965
5	Nino Benvenuti	June 18, 1965 – June 25, 1966
6	Ki-Soo Kim	June 25, 1966 – May 26, 1968
7	Alessandro Mazzinghi	May 26, 1968 – November 30, 1968 (vacated)
8	Freddie Little (def. Stanley Hayward)	March 17, 1969 – July 9, 1970
9	Carmelo Bossi	July 9, 1970 – October 31, 1971
10	Koichi Wajima	October 31, 1971 – June 4, 1974
11	Oscar Albarado	June 4, 1974 – January 21, 1975
12	Koichi Wajima	January 21, 1975 – June 7, 1975
13	Jae-Do Yuh	June 7, 1975 – February 17, 1976
14	Koichi Wajima	February 17, 1976 – May 18, 1976
15	José Durán	May 18, 1976 – October 8, 1976
16	Miguel Ángel Castellini	October 8, 1976 – March 5, 1977
17	Eddie Gazo	March 5, 1977 – August 9, 1978
18	Masashi Kudo	August 9, 1978 – October 24, 1979
19	Ayub Kalule	October 24, 1979 – June 25, 1981
20	Sugar Ray Leonard	June 25, 1981 – September 22, 1981 (vacated)
21	Thomas Hearns (def. Roberto Durán)	June 15, 1984 – September 28, 1986 (vacated)
22	Terry Norris (def. Paul Vaden)	December 16, 1995 – December 6, 1997
23	Keith Mullings	December 6, 1997 – January 29, 1999
24	Javier Castillejo	January 29, 1999 – June 23, 2001
25	Oscar De La Hoya	June 23, 2001 – September 13, 2003
26	Shane Mosley	September 13, 2003 – March 13, 2004
27	Winky Wright	March 13, 2004 – March 25, 2005 (vacated)
28	Floyd Mayweather Jr. (def. Canelo Álvarez)	September 14, 2013 – September 21, 2015 (retired)
29	Jermell Charlo (def. Jeison Rosario)	September 26, 2020 – present

Welterweight

Number	Champion	Reign
1	Paddy Duffy (def. William McMillan)	October 30, 1888 – July 10, 1890 (died)
2	Mysterious Billy Smith (def. Danny Needham)	December 14, 1892 – July 26, 1894
3	Tommy Ryan	July 26, 1894 – February 25, 1898 (vacated)
4	Mysterious Billy Smith (def. William "Matty" Matthews)	August 25, 1898 – April 17, 1900
5	William "Matty" Matthews	April 17, 1900 – June 5, 1900
6	Eddie Connolly	June 5, 1900 – August 13, 1900
7	James "Rube" Ferns	August 13, 1900 – October 16, 1900
8	William "Matty" Matthews	October 16, 1900 – May 24, 1901
9	James "Rube" Ferns	May 24, 1901 – December 18, 1901
10	Joe Walcott	December 18, 1901 – April 29, 1904
11	Dixie Kid	April 29, 1904 – September 21, 1904 (vacated)
12	Billy "Honey" Mellody (def. Joe Walcott)	October 16, 1906 - April 23, 1907
13	Mike "Twin" Sullivan	April 23, 1907 – October 31, 1908 (vacated)
14	Waldemar Holberg (def. Ray Bronson)	January 1, 1914 – January 24, 1914
15	Tom McCormick	January 24, 1914 – March 21, 1914
16	Matt Wells	March 21, 1914 – June 1, 1915
17	Mike Glover	June 1, 1915 – June 22, 1915
18	Jack Britton	June 22, 1915 – August 31, 1915
19	Ted "Kid" Lewis	August 31, 1915 – April 24, 1916
20	Jack Britton	April 24, 1916 – June 25, 1917
21	Ted "Kid" Lewis	June 25, 1917 – March 17, 1919
22	Jack Britton	March 17, 1919 – November 1, 1922
23	Mickey Walker	November 1, 1922 – May 20, 1926
24	Pete Latzo	May 20, 1926 – June 3, 1927
25	Joe Dundee	June 3, 1927 – June 25, 1929
26	Jackie Fields	July 25, 1929 – May 9, 1930
27	Jack Thompson	May 9, 1930 – September 5, 1930
28	Tommy Freeman	September 5, 1930 – April 14, 1931
29	Jack Thompson	April 14, 1931 – October 23, 1931
30	Lou Brouillard	October 23, 1931 – January 28, 1932
31	Jackie Fields	January 28, 1932 – February 22, 1933
32	Young Corbett III	February 22, 1933 – May 29, 1933
33	Jimmy McLarnin	May 29, 1933 – May 28, 1934
34	Barney Ross	May 28, 1934 – September 17, 1934
35	Jimmy McLarnin	September 17, 1934 – May 28, 1935
36	Barney Ross	May 28, 1935 – May 31, 1938
37	Henry Armstrong	May 31, 1938 – October 4, 1940
38	Fritzie Zivic	October 4, 1940 – July 29, 1941
39	Freddie "Red" Cochrane	July 29, 1941 – February 1, 1946
40	Marty Servo	February 1, 1946 – September 25, 1946 (vacated)
41	Sugar Ray Robinson (def. Tommy Bell)	December 20, 1946 – March 14, 1951 (vacated)
42	Kid Gavilán (def. Johnny Bratton)	May 18, 1951 – October 20, 1954
43	Johnny Saxton	October 20, 1954 – April 1, 1955
44	Tony DeMarco	April 1, 1955 – June 10, 1955
45	Carmen Basilio	June 10, 1955 – March 14, 1956
46	Johnny Saxton	March 14, 1956 – September 12, 1956
47	Carmen Basilio	September 12, 1956 – September 23, 1957 (vacated)
48	Virgil Akins (def. Vince Martinez)	June 6, 1958 – December 5, 1958
49	Don Jordan	December 5, 1958 – May 27, 1960
50	Benny Paret	May 27, 1960 – April 1, 1961
51	Emile Griffith	April 1, 1961 – September 30, 1961
52	Benny Paret	September 30, 1961 – March 24, 1962
53	Emile Griffith	March 24, 1962 – March 21, 1963
54	Luis Manuel Rodríguez	March 21, 1963 – June 8, 1963
55	Emile Griffith	June 8, 1963 – August 2, 1966 (vacated)
56	Curtis Cokes (def. Manuel Gonzalez)	August 24, 1966 – April 18, 1969
57	José Nápoles	April 18, 1969 – December 3, 1970
58	Billy Backus	December 3, 1970 – June 4, 1971
59	José Nápoles	June 4, 1971 – December 6, 1975
60	John H. Stracey	December 6, 1975 – June 22, 1976
61	Carlos Palomino	June 22, 1976 – January 14, 1979
62	Wilfred Benítez	January 14, 1979 – November 30, 1979
63	Sugar Ray Leonard	November 30, 1979 – June 20, 1980
64	Roberto Durán	June 20, 1980 – November 25, 1980
65	Sugar Ray Leonard	November 25, 1980 – November 9, 1982 (vacated)
66	Donald Curry (def. Milton McCrory)	December 6, 1985 – September 27, 1986
67	Lloyd Honeyghan	September 27, 1986 – October 28, 1987
68	Jorge Vaca	October 28, 1987 – March 29, 1988
69	Lloyd Honeyghan	March 29, 1988 – February 4, 1989
70	Marlon Starling	February 4, 1989 – August 19, 1990
71	Maurice Blocker	August 19, 1990 – March 18, 1991
72	Simon Brown	March 18, 1991 – November 29, 1991
73	James "Buddy" McGirt	November 29, 1991 – March 6, 1993
74	Pernell Whitaker	March 6, 1993 – April 12, 1997
75	Oscar De La Hoya	April 12, 1997 – September 18, 1999
76	Félix Trinidad	September 18, 1999 – March 3, 2000 (vacated)
77	Shane Mosley (def. Oscar De La Hoya)	June 17, 2000 – January 26, 2002
78	Vernon Forrest	January 26, 2002 – January 25, 2003
79	Ricardo Mayorga	January 25, 2003 – December 13, 2003
80	Cory Spinks	December 13, 2003 – February 5, 2005
81	Zab Judah	February 5, 2005 – January 7, 2006
82	Carlos Baldomir	January 7, 2006 – November 4, 2006
83	Floyd Mayweather Jr.	November 4, 2006 – June 6, 2008 (retired)
84	Shane Mosley (def. Antonio Margarito)	January 24, 2009 – May 1, 2010
85	Floyd Mayweather Jr.	May 1, 2010 – September 21, 2015 (retired)
86	Manny Pacquiao (def. Timothy Bradley)	April 12, 2016 – April 19, 2016 (retired)
87	Terence Crawford (def. Errol Spence Jr.)	July 29, 2023 – October 21, 2024 (vacated)

Light welterweight

Number	Champion	Reign
1	Myron "Pinky" Mitchell (via recognition; last def. Tommy O'Brien)	November 15, 1922 – September 21, 1926
2	Mushy Callahan	September 21, 1926 – February 18, 1930
3	Jack Kid Berg	February 18, 1930 – April 24, 1931
4	Tony Canzoneri	April 24, 1931 – January 18, 1932
5	Johnny Jadick	January 18, 1932 – February 20, 1933
6	Battling Shaw	February 20, 1933 – May 21, 1933
7	Tony Canzoneri	May 21, 1933 – June 23, 1933
8	Barney Ross	June 23, 1933 – April 15, 1935 (vacated)
9	Tippy Larkin (def. Willie Joyce)	April 29, 1946 – November 5, 1946 (vacated)
10	Carlos Ortiz (def. Kenny Lane)	June 12, 1959 – September 1, 1960
11	Duilio Loi	September 1, 1960 – September 14, 1962
12	Eddie Perkins	September 14, 1962 – December 15, 1962
13	Duilio Loi	December 15, 1962 – January 24, 1963 (retired)
14	Eddie Perkins (def. Roberto Cruz)	June 15, 1963 – January 18, 1965
15	Carlos Hernández	January 18, 1965 – April 29, 1966
16	Sandro Lopopolo	April 29, 1966 – April 30, 1967
17	Takeshi Fuji	April 30, 1967 – December 12, 1968
18	Nicolino Locche	December 12, 1968 – March 10, 1972
19	Alfonso "Peppermint" Frazer	March 10, 1972 – October 28, 1972
20	Antonio Cervantes	October 28, 1972 - March 6, 1976
21	Wilfred Benítez	March 6, 1976 – January 14, 1979 (vacated)
22	Aaron Pryor (def. Alexis Argüello)	September 9, 1983 – December 31, 1985 (vacated)
23	Julio César Chávez (def. Meldrick Taylor)	March 17, 1990 – January 29, 1994
24	Frankie Randall	January 29, 1994 – May 7, 1994
25	Julio César Chávez	May 7, 1994 – June 7, 1996
26	Oscar De La Hoya	June 7, 1996 – April 12, 1997 (vacated)
27	Kostya Tszyu (def. Sharmba Mitchell)	February 3, 2001 – June 4, 2005
28	Ricky Hatton	June 4, 2005 – May 2, 2009
29	Manny Pacquiao	May 2, 2009 – July 26, 2010 (vacated)
30	Danny García (def. Lucas Matthysse)	September 14, 2013 – August 10, 2015 (vacated)
31	Terence Crawford (def. Viktor Postol)	July 23, 2016 – March 6, 2018 (vacated)
32	Mikey Garcia (def. Sergey Lipinets)	March 10, 2018 – March 3, 2020 (vacated)
33	Josh Taylor (def. José Ramírez)	May 22, 2021 – June 10, 2023
34	Teófimo López	June 10, 2023 – present

Lightweight

Number	Champion	Reign
1	Jack McAuliffe (def. Billy Frazier)	October 29, 1886 – November 1, 1893 (retired)
2	George "Kid" Lavigne (def. Dick Burge)	June 1, 1896 – July 3, 1899
3	Frank Erne	July 3, 1899 – May 12, 1902
4	Joe Gans	May 12, 1902 – October 31, 1904 (vacated)
5	Jimmy Britt (def. Battling Nelson)	December 20, 1904 – September 8, 1905
6	Battling Nelson	September 8, 1905 – September 3, 1906
7	Joe Gans	September 3, 1906 – August 4, 1908
8	Battling Nelson	August 4, 1908 – February 22, 1910
9	Ad Wolgast	February 22, 1910 – November 28, 1912
10	Willie Ritchie	November 28, 1912 – July 7, 1914
11	Freddie Welsh	July 7, 1914 – May 28, 1917
12	Benny Leonard	May 28, 1917 – January 15, 1925 (retired)
13	Jimmy Goodrich (def. Stanislaus Loayza)	July 13, 1925 – December 7, 1925
14	Rocky Kansas	December 7, 1925 – June 3, 1926
15	Sammy Mandell	July 3, 1926 – July 17, 1930
16	Al Singer	July 17, 1930 – November 14, 1930
17	Tony Canzoneri	November 14, 1930 – June 23, 1933
18	Barney Ross	June 23, 1933 – April 15, 1935 (vacated)
19	Tony Canzoneri (def. Lou Ambers)	May 10, 1935 – September 3, 1936
20	Lou Ambers	September 3, 1936 – August 17, 1938
21	Henry Armstrong	August 17, 1938 – August 22, 1939
22	Lou Ambers	August 22, 1939 – May 10, 1940
23	Lew Jenkins	May 10, 1940 – December 19, 1941
24	Sammy Angott	December 19, 1941 – November 14, 1942 (vacated)
25	Ike Williams (def. Bob Montgomery)	August 4, 1947 – May 25, 1951
26	Jimmy Carter	May 25, 1951 – May 14, 1952
27	Lauro Salas	May 14, 1952 – October 15, 1952
28	Jimmy Carter	October 15, 1952 – March 5, 1954
29	Paddy DeMarco	March 5, 1954 – November 17, 1954
30	Jimmy Carter	November 17, 1954 – June 29, 1955
31	Wallace "Bud" Smith	June 29, 1955 – August 24, 1956
32	Joe Brown	August 24, 1956 – April 21, 1962
33	Carlos Ortiz	April 21, 1962 – April 10, 1965
34	Ismael Laguna	April 10, 1965 – November 13, 1965
35	Carlos Ortiz	November 13, 1965 – June 29, 1968
36	Carlos Teo Cruz	June 29, 1968 – February 18, 1969
37	Mando Ramos	February 18, 1969 – March 3, 1970
38	Ismael Laguna	March 3, 1970 – September 26, 1970
39	Ken Buchanan	September 26, 1970 – June 26, 1972
40	Roberto Durán	June 26, 1972 – February 3, 1979 (vacated)
41	Alexis Argüello (def. Jim Watt)	June 20, 1981 – February 15, 1983 (vacated)
42	Julio César Chávez (def. José Luis Ramírez)	October 29, 1988 – May 13, 1989 (vacated)
43	Pernell Whitaker (def. Juan Nazario)	August 11, 1990 – May 22, 1992 (vacated)
44	Floyd Mayweather Jr. (def. José Luis Castillo)	April 20, 2002 – May 22, 2004 (vacated)
45	José Luis Castillo (def. Juan Lazcano)	June 5, 2004 – May 7, 2005
46	Diego Corrales	May 7, 2005 – October 8, 2006
47	Joel Casamayor	October 7, 2006 – September 13, 2008
48	Juan Manuel Márquez	September 13, 2008 – April 14, 2012 (vacated)
49	Terence Crawford (def. Ray Beltrán)	November 29, 2014 – April 18, 2015 (vacated)
50	Teófimo López (def. Vasyl Lomachenko)	October 17, 2020 – November 27, 2021
51	George Kambosos Jr.	November 27, 2021 – June 5, 2022
52	Devin Haney	June 5, 2022 – December 9, 2023 (vacated)

Super featherweight

Number	Champion	Reign
1	Johnny Dundee (def. George Chaney)	November 18, 1921 – May 30, 1923
2	Jack Bernstein	May 30, 1923 – December 17, 1923
3	Johnny Dundee	December 17, 1923 – June 20, 1924
4	Steve "Kid" Sullivan	June 20, 1924 – April 1, 1925
5	Mike Ballerino	April 1, 1925 – December 2, 1925
6	Tod Morgan	December 2, 1925 – December 19, 1929
7	Benny Bass	December 19, 1929 – July 15, 1931
8	Kid Chocolate	July 15, 1931 – December 25, 1933
9	Frankie Klick	December 25, 1933 – March 5, 1934 (vacated)
10	Sandy Saddler (def. Orlando Zulueta)	December 6, 1949 – January 21, 1957 (retired)
11	Harold Gomes (def. Paul Jorgensen)	July 20, 1959 – March 16, 1960
12	Gabriel "Flash" Elorde	March 16, 1960 – June 15, 1967
13	Yoshiaki Numata	June 15, 1967 – December 14, 1967
14	Hiroshi Kobayashi	December 14, 1967 – July 29, 1971
15	Alfredo Marcano	July 29, 1971 – April 25, 1972
16	Ben Villaflor	April 25, 1972 – March 12, 1973
17	Kuniaki Shibata	March 12, 1973 – October 17, 1973
18	Ben Villaflor	October 17, 1973 – October 16, 1976
19	Samuel Serrano	October 16, 1976 – August 2, 1980
20	Yasutsune Uehara	August 2, 1980 – April 9, 1981
21	Samuel Serrano	April 9, 1981 – January 19, 1983
22	Roger Mayweather	January 19, 1983 – February 26, 1984
23	Rocky Lockridge	February 26, 1984 – May 19, 1985
24	Wilfredo Gómez	May 19, 1985 – May 24, 1986
25	Alfredo Layne	May 24, 1986 – September 27, 1986
26	Brian Mitchell	September 27, 1986 – January 25, 1992 (retired)
27	Azumah Nelson (def. Jesse James Leija)	June 1, 1996 – March 22, 1997
28	Genaro Hernández	March 22, 1997 – October 3, 1998
29	Floyd Mayweather Jr.	October 3, 1998 – April 20, 2002 (vacated)
30	Manny Pacquiao (def. Juan Manuel Márquez)	March 15, 2008 – July 16, 2008 (vacated)
31	Shakur Stevenson (def. Óscar Valdez)	April 30, 2022 – September 24, 2022 (vacated)

Featherweight

Number	Champion	Reign
1	Torpedo Billy Murphy (def. Ike Weir)	January 13, 1890 – September 2, 1890
2	Young Griffo	September 2, 1890 – March 14, 1891 (vacated)
3	George Dixon (def. Cal McCarthy)	March 31, 1891 – October 4, 1897
4	Solly Smith	October 4, 1897 – September 26, 1898
5	Dave Sullivan	September 26, 1898 – November 11, 1898
6	George Dixon	November 11, 1898 – January 9, 1900
7	Terry McGovern	January 9, 1900 – November 28, 1901
8	Young Corbett II	November 28, 1901 – November 17, 1902 (vacated)
9	Abe Attell (def. Johnny Reagan)	September 3, 1903 – February 22, 1912
10	Johnny Kilbane	February 22, 1912 – June 2, 1923
11	Eugène Criqui	June 2, 1923 – July 26, 1923
12	Johnny Dundee	July 26, 1923 – August 20, 1924 (vacated)
13	Louis "Kid" Kaplan (def. Danny Kramer)	January 2, 1925 – July 7, 1926 (vacated)
14	Tony Canzoneri (def. Benny Bass)	February 10, 1928 – September 28, 1928
15	André Routis	September 28, 1928 – September 23, 1929
16	Battling Battalino	September 23, 1929 – January 27, 1932 (vacated)
17	Henry Armstrong (def. Petey Sarron)	October 29, 1937 – September 13, 1938 (vacated)
18	Joey Archibald (def. Leo Rodak)	April 18, 1939 – May 20, 1940
19	Harry Jeffra	May 20, 1940 – May 12, 1941
20	Joey Archibald	May 12, 1941 – September 11, 1941
21	Chalky Wright	September 11, 1941 – November 20, 1942
22	Willie Pep	November 20, 1942 – October 29, 1948
23	Sandy Saddler	October 29, 1948 – February 11, 1949
24	Willie Pep	February 11, 1949 – September 8, 1950
25	Sandy Saddler	September 8, 1950 – January 21, 1957 (retired)
26	Hogan Bassey (def. Cherif Hamia)	June 24, 1957 – March 18, 1959
27	Davey Moore	March 18, 1959 – March 21, 1961
28	Sugar Ramos	March 21, 1963 – September 26, 1964
29	Vicente Saldivar	September 26, 1964 – October 14, 1967 (retired)
30	Johnny Famechon (def. José Legrá)	January 21, 1969 – May 9, 1970
31	Vicente Saldivar	May 9, 1970 – December 11, 1970
32	Kuniaki Shibata	December 11, 1970 – May 19, 1972
33	Clemente Sánchez	May 19, 1972 – December 16, 1972
34	José Legrá	December 16, 1972 – May 5, 1973
35	Éder Jofre	May 5, 1973 – June 17, 1974 (vacated)
36	Alexis Argüello (def. Rigoberto Riasco)	May 31, 1975 – June 20, 1977 (vacated)
37	Danny Lopez (def. Roberto Castañón)	March 10, 1979 – February 2, 1980
38	Salvador Sánchez	February 2, 1980 – August 12, 1982 (died)
39	Eusebio Pedroza (def. Rocky Lockridge)	April 24, 1983 – June 8, 1985
40	Barry McGuigan	June 8, 1985 – June 23, 1986
41	Stevie Cruz	June 23, 1986 – March 6, 1987
42	Antonio Esparragoza	March 6, 1987 – March 30, 1991
43	Yong-Kyun Park	March 30, 1991 – December 4, 1993
44	Eloy Rojas	December 4, 1993 – May 18, 1996
45	Wilfredo Vázquez	May 18, 1996 – April 18, 1998
46	Naseem Hamed	April 18, 1998 – April 7, 2001
47	Marco Antonio Barrera	April 7, 2001 – November 16, 2003
48	Manny Pacquiao	November 15, 2003 – March 19, 2005 (vacated)

Super bantamweight

Number	Champion	Reign
1	Jack "Kid" Wolfe (def. Joe Lynch)	September 21, 1922 – August 29, 1923
2	Carl Duane	August 29, 1923 – September 12, 1923 (vacated)
3	Rigoberto Riasco (def. Waruinge Nakayama)	April 3, 1976 - October 9, 1976
4	Kazuo "Royal" Kobayashi	October 9, 1976 – November 24, 1976
5	Dong-Kyun Yum	November 24, 1976 – May 21, 1977
6	Wilfredo Gómez	May 21, 1977 – August 21, 1981 (vacated)
7	Israel Vázquez (def. Óscar Larios)	December 3, 2005 – March 3, 2007
8	Rafael Márquez	March 3, 2007 – August 4, 2007
9	Israel Vázquez	August 4, 2007 – June 1, 2009 (vacated)
10	Nonito Donaire (def. Toshiaki Nishioka)	October 13, 2012 – April 13, 2013
11	Guillermo Rigondeaux	April 13, 2013 – July 11, 2022 (vacated)
11	Naoya Inoue (def. Marlon Tapales)	December 26, 2023 – present

Bantamweight

Number	Champion	Reign
1	Jimmy Barry (def. Casper Leon)	September 15, 1894 – September 1, 1899 (retired)
2	Terry McGovern (def. Pedlar Palmer)	September 12, 1899 – December 22, 1899 (vacated)
3	Harry Harris (def. Pedlar Palmer)	March 18, 1901 – March 31, 1901 (vacated)
4	Harry Forbes (def. Danny Dougherty)	November 11, 1901 – August 13, 1903
5	Frankie Neil	August 13, 1903 – October 17, 1904
6	Joe Bowker	October 17, 1904 – March 20, 1905 (vacated)
7	Jimmy Walsh (def. Monte Attell)	March 29, 1905 – January 29, 1909
8	"Fighting" Jimmy Reagan	January 29, 1909 – February 22, 1909
9	Monte Attell	February 22, 1909 – February 22, 1911 (vacated)
10	Johnny Coulon (def. Frankie Conley)	February 26, 1911 – June 9, 1914
11	Kid Williams	June 9, 1914 – January 9, 1917
12	Pete "Kid" Herman	January 9, 1917 – December 22, 1920
13	Joe Lynch	December 22, 1920 – July 25, 1921
14	Pete "Kid" Herman	July 25, 1921 – September 23, 1921
15	Johnny Buff	September 23, 1921 – July 10, 1922
16	Joe Lynch	July 10, 1922 – March 21, 1924
17	Abe Goldstein	March 21, 1924 – December 19, 1924
18	Eddie "Cannonball" Martin	December 19, 1924 – March 20, 1925
19	Charlie Phil Rosenberg	March 20, 1925 – February 4, 1927 (vacated)
20	Panama Al Brown (def. Gregorio Vidal)	June 18, 1929 – June 1, 1935
21	Baltasar Sangchili	June 1, 1935 – June 29, 1936
22	Tony Marino	June 29, 1936 - August 31, 1936
23	Sixto Escobar	August 31, 1936 – September 23, 1937
24	Harry Jeffra	September 23, 1937 – February 20, 1938
25	Sixto Escobar	February 20, 1938 – October 27, 1939 (vacated)
26	Louis Salica (def. Georgie Pace)	September 24, 1940 – August 7, 1942
27	Manuel Ortiz	August 7, 1942 – January 6, 1947
28	Harold Dade	January 6, 1947 – March 11, 1947
29	Manuel Ortiz	March 11, 1947 – May 31, 1950
30	Vic Toweel	May 31, 1950 – November 15, 1952
31	Jimmy Carruthers	November 15, 1952 – May 3, 1954 (retired)
32	Robert Cohen (def. Chamroen Songkitrat)	September 19, 1954 – June 29, 1956
33	Mario D'Agata	June 29, 1956 – April 1, 1957
34	Alphonse Halimi	April 1, 1957 – July 8, 1959
35	José Becerra	July 8, 1959 – August 30, 1960 (retired)
36	Éder Jofre (def. Johnny Caldwell)	January 18, 1962 – May 18, 1965
37	Masahiko "Fighting" Harada	May 18, 1965 – February 27, 1968
38	Lionel Rose	February 27, 1968 – August 22, 1969
39	Rubén Olivares	August 22, 1969 - October 16, 1970
40	Jesus "Chucho" Castillo	October 16, 1970 – April 2, 1971
41	Rubén Olivares	April 2, 1971 – March 19, 1972
42	Rafael Herrera	March 19, 1972 – July 29, 1972
43	Enrique Pinder	July 29, 1972 – January 20, 1973
44	Romeo Anaya	January 20, 1973 – November 3, 1973
45	Arnold Taylor	November 3, 1973 – July 3, 1974
46	Soo-Hwan Hong	July 3, 1974 – March 14, 1975
47	Alfonso Zamora	March 14, 1975 – November 19, 1977
48	Jorge Luján	November 19, 1977 – August 29, 1980
49	Julian Solís	August 29, 1980 – November 14, 1980
50	Jeff Chandler	November 14, 1980 – April 7, 1984
51	Richie Sandoval	April 7, 1984 – March 10, 1986
52	Jose "Gaby" Canizales	March 10, 1986 – June 4, 1986
53	Bernardo Piñango	June 4, 1986 – March 29, 1987 (vacated)
54	Naoya Inoue (def. Nonito Donaire)	June 7, 2022 – January 16, 2023 (vacated)

Super flyweight

Number	Champion	Reign
1	Jiro Watanabe (def. Payao Poontarat)	July 5, 1984 – March 30, 1986
2	Gilberto Román	March 30, 1986 – May 16, 1987
3	Santos Laciar	May 16, 1987 – August 8, 1987
4	Sugar Baby Rojas	August 8, 1987 – April 8, 1988
5	Gilberto Román	April 8, 1988 – November 7, 1989
6	Nana Konadu	November 7, 1989 – January 20, 1990
7	Sung-Kil Moon	January 20, 1990 – November 13, 1993
8	José Luis Bueno	November 13, 1993 – May 4, 1994
9	Hiroshi Kawashima	May 4, 1994 - February 20, 1997
10	Gerry Peñalosa	February 20, 1997 – August 29, 1998
11	In-Joo Cho	August 29, 1998 – August 27, 2000
12	Masamori Tokuyama	August 27, 2000 – June 28, 2004
13	Katsushige Kawashima	June 28, 2004 – July 18, 2005
14	Masamori Tokuyama	July 18, 2005 – December 10, 2006 (retired)
15	Vic Darchinyan (def. Jorge Arce)	February 7, 2009 – April 23, 2011 (vacated)
16	Srisaket Sor Rungvisai (def. Juan Francisco Estrada)	February 24, 2018 – April 26, 2019
17	Juan Francisco Estrada	April 26, 2019 – June 29, 2024
18	Jesse Rodriguez	June 29, 2024 – present

Flyweight

Number	Champion	Reign
1	Jimmy Wilde (def. Young Zulu Kid)	December 18, 1916 – June 18, 1923
2	Pancho Villa	June 18, 1923 – July 4, 1925 (died)
3	Fidel LaBarba (def. Elky Clark)	January 21, 1927 – August 25, 1927 (vacated)
4	Benny Lynch (def. Small Montana)	January 19, 1937 – June 29, 1938 (vacated)
5	Peter Kane (def. Jackie Jurich)	September 22, 1938 – May 8, 1939 (vacated)
6	Jackie Paterson (def. Peter Kane)	June 19, 1943 – March 23, 1948
7	Rinty Monaghan	March 23, 1948 – March 23, 1950 (vacated)
8	Terry Allen (def. Honore Pratesi)	April 25, 1950 – August 1, 1950
9	Dado Marino	August 1, 1950 – May 19, 1952
10	Yoshio Shirai	May 19, 1952 – November 26, 1954
11	Pascual Pérez	November 26, 1954 – April 16, 1960
12	Pone Kingpetch	April 16, 1960 – October 10, 1962
13	Masahiko "Fighting" Harada	October 10, 1962 – January 12, 1963
14	Pone Kingpetch	January 12, 1963 – September 18, 1963
15	Hiroyuki Ebihara	September 18, 1963 – January 23, 1964
16	Pone Kingpetch	January 23, 1964 – April 23, 1965
17	Salvatore Burruni	April 23, 1965 – June 14, 1966
18	Walter McGowan	June 14, 1966 – December 30, 1966
19	Chartchai Chionoi	December 30, 1966 – February 23, 1969
20	Efren Torres	February 23, 1969 – March 20, 1970
21	Chartchai Chionoi	March 20, 1970 – December 7, 1970
22	Erbito Salavarria	December 7, 1970 – February 9, 1973
23	Venice Borkhorsor	February 9, 1973 – July 10, 1973 (vacated)
24	Miguel Canto (def. Shoji Oguma)	January 8, 1975 – March 18, 1979
25	Chan-Hee Park	March 18, 1979 – May 18, 1980
26	Shoji Oguma	May 18, 1980 – May 12, 1981
27	Antonio Avelar	May 12, 1981 – March 20, 1982
28	Prudencio Cardona	March 20, 1982 – July 24, 1982
29	Freddy Castillo	July 24, 1982 – November 6, 1982
30	Eleoncio Mercedes	November 6, 1982 – March 15, 1983
31	Charlie Magri	March 15, 1983 – September 27, 1983
32	Frank Cedeno	September 27, 1983 – January 18, 1984
33	Koji Kobayashi	January 18, 1984 – April 9, 1984
34	Gabriel Bernal	April 9, 1984 – October 8, 1984
35	Sot Chitalada	October 8, 1984 – July 24, 1988
36	Yong-Kang Kim	July 24, 1988 – June 3, 1989
37	Sot Chitalada	June 3, 1989 – February 15, 1991
38	Muangchai Kittikasem	February 15, 1991 – June 23, 1992
39	Yuri Arbachakov	June 23, 1992 – November 12, 1997
40	Chatchai Sasakul	November 12, 1997 – December 4, 1998
41	Manny Pacquiao	December 4, 1998 – September 17, 1999
42	Medgoen Singsurat	September 17, 1999 – May 19, 2000
43	Malcolm Tuñacao	May 19, 2000 – March 2, 2001
44	Pongsaklek Wonjongkam	March 2, 2001 – July 18, 2007
45	Daisuke Naito	July 18, 2007 – November 29, 2009
46	Koki Kameda	November 29, 2009 – March 27, 2010
47	Pongsaklek Wonjongkam	March 27, 2010 – March 2, 2012
48	Sonny Boy Jaro	March 2, 2012 – July 16, 2012
49	Toshiyuki Igarashi	July 16, 2012 – April 8, 2013
50	Akira Yaegashi	April 8, 2013 – September 5, 2014
51	Román González	September 5, 2014 – October 4, 2016 (vacated)

Light flyweight

Number	Champion	Reign
1	Michael Carbajal (def. Humberto González)	March 13, 1993 – February 19, 1994
2	Humberto González	February 19, 1994 – July 15, 1995
3	Saman Sorjaturong	July 15, 1995 – October 17, 1999
4	Yo-Sam Choi	October 17, 1999 – July 6, 2002
5	Jorge Arce	July 6, 2002 – March 19, 2005 (vacated)
6	Hugo Cázares (def. Nelson Dieppa)	September 30, 2006 – August 25, 2007
7	Iván Calderón	August 25, 2007 – August 28, 2010
8	Giovani Segura	August 28, 2010 – September 19, 2011 (vacated)
9	Kenshiro Teraji (def. Hiroto Kyoguchi)	November 1, 2022 – October 14, 2024 (vacated)

Minimumweight

Number	Champion	Reign
1	Kyung-Yung Lee (def. Masaharu Kawakami)	June 14, 1987 – January 31, 1988
2	Hiroki Ioka	January 31, 1988 – November 13, 1988
3	Napa Kiatwanchai	November 13, 1988 – November 12, 1989
4	Jum-Hwan Choi	November 12, 1989 – February 7, 1990
5	Hideyuki Ohashi	February 7, 1990 – October 25, 1990
6	Ricardo López	October 25, 1990 – September 1, 1999 (vacated)