List of The Ring world champions

Boxing magazine The Ring has awarded world championships in professional boxing within each weight class from its foundation in 1922 until the 1990s, and again since 2001. These titles were at one point intertwined with the lineal championship of a weight class, but have since become distinct from each other.

History

The Ring began awarding world championship belts in 1922. The first Ring world title belt was awarded to Heavyweight Champion Jack Dempsey, and the second was awarded to Flyweight Champion Pancho Villa. The Ring stopped giving belts to world champions in the 1990s, then reintroduced their title in 2001 yet ignored the current world championship lineage.[1]

The Ring soon introduced a championship policy. A vacant title is awarded only to the winner of a fight between The Ring's No. 1 contender and No. 2 or the No. 3 contender. The ratings are compiled by the magazine's Editorial Board, with the participation of The Ring Ratings Panel of boxing journalists from around the world.

The Ring stated that their title was "intended to reward fighters who, by satisfying rigid criteria, can justify a claim as the true and only world champion in a given weight class".[2] However, many boxing journalists complained that The Ring ignored the current world championship lineage when they started awarding titles again. A controversy described by Cliff Rold of BoxingScene.com is for example, the "world" light-heavyweight title was considered vacant from the time Michael Spinks went up to heavyweight in 1985 until 1996. While the Cyber Boxing Zone and the International Boxing Research Organization considers Virgil Hill's defeat of Henry Maske (who were the two highest rated light-heavyweights) as the beginning of the new lineage,[3] The Ring controversially awarded their newly reintroduced title to Roy Jones.[4] In 2002, The Ring editor, Nigel Collins, acknowledged that if their championship policy was in place in 1997, Dariusz Michalczewski, who defeated Hill, "probably would have been The Ring Champion."[5]

In 2007, The Ring was acquired by Oscar De La Hoya's Golden Boy Enterprises, which includes Golden Boy Promotions, one of the most success promotional companies in boxing.[6] Golden Boy has publicized The Ring's World Championship when the title is at stake in fights it promotes (such as Joe Calzaghe vs. Roy Jones Jr. in 2008).[7]

In May 2012, citing the number of vacancies in various weight classes as primary motivation, The Ring unveiled a new championship policy. Under the new policy, if the No. 1 and No. 2 contenders choose not to fight one another and either of them fights No. 3, No. 4 or No. 5, the winner may be awarded The Ring belt.

There are now also seven ways that a boxer can lose the title.[8]

  • The champion loses a fight in the weight class in which he is champion.
  • The champion moves to another weight class.
  • The champion does not schedule a fight in any weight class for 18 months.
  • The champion does not schedule a fight at his championship weight for 18 months (even if he fights at another weight).
  • The champion does not schedule a fight with a Top-5 contender from any weight class for two years.
  • The champion retires.
  • The champion tests positive for a banned substance.

Some boxing journalists are extremely critical of the new championship policy and state that if this new policy is followed, the Ring title will lose the credibility it once held.[9][10][11]

Heavyweight
Number Champion Reign
1 Jack Dempsey 1922 – September 23, 1926
2 Gene Tunney September 23, 1926 – July 31, 1928 (retired)
3 Max Schmeling (def. Jack Sharkey) June 12, 1930 – June 21, 1932
4 Jack Sharkey June 21, 1932 – June 29, 1933
5 Primo Carnera June 29, 1933 – June 14, 1934
6 Max Baer June 14, 1934 – June 13, 1935
7 James J. Braddock June 13, 1935 – June 22, 1937
8 Joe Louis June 22, 1937 – March 1, 1949 (retired)
9 Ezzard Charles September 27, 1950 – July 18, 1951
10 Jersey Joe Walcott July 18, 1951 – September 23, 1952
11 Rocky Marciano September 23, 1952 – April 27, 1956 (retired)
12 Floyd Patterson (def. Archie Moore) November 30, 1956 – June 26, 1959
13 Ingemar Johansson June 26, 1959 – June 20, 1960
14 Floyd Patterson June 20, 1960 – September 25, 1962
15 Sonny Liston September 25, 1962 – February 25, 1964
16 Muhammad Ali February 25, 1964 – February 3, 1970 (Boxing license revoked)
17 Joe Frazier March 8, 1971 – January 22, 1973
18 George Foreman January 22, 1973 – October 30, 1974
19 Muhammad Ali October 30, 1974 – February 15, 1978
20 Leon Spinks February 15, 1978 – September 15, 1978
21 Muhammad Ali September 15, 1978 – September 6, 1979 (retired)
22 Larry Holmes October 2, 1980 – September 21, 1985
23 Michael Spinks September 21, 1985 – June 27, 1988
24 Mike Tyson June 27, 1988 (new ownership discontinued championship policy during Tyson's reign)
25 Lennox Lewis 2002 – February 6, 2004 (retired)
26 Vitali Klitschko (def. Corrie Sanders) April 24, 2004 – November 9, 2005 (retired)
27 Wladimir Klitschko (def. Ruslan Chagaev) June 20, 2009 – November 28, 2015
28 Tyson Fury November 28, 2015 – February 1, 2018 (stripped for inactivity)[12]
29 Tyson Fury (def. Deontay Wilder) February 22, 2020 – present

Cruiserweight
Number Champion Reign
1 Carlos de León (awarded title by The Ring) February 3, 1984 – June 6, 1985
2 Alfonzo Ratliff June 6, 1985 – September 21, 1985
3 Bernard Benton September 21, 1985 – March 22, 1986
4 Carlos de León March 22, 1986 – March 30, 1987 (The Ring stopped recognizing the cruiserweight division)
5 Jean-Marc Mormeck (def. Wayne Braithwaite) April 2, 2005 – January 7, 2006
6 O'Neil Bell January 7, 2006 – March 17, 2007
7 Jean-Marc Mormeck March 17, 2007 – November 10, 2007
8 David Haye November 10, 2007 – May 23, 2008 (moved up to heavyweight)
9 Tomasz Adamek (def. Steve Cunningham) December 11, 2008 – February 20, 2010 (moved up to heavyweight)
10 Yoan Pablo Hernández (def. Steve Cunningham) February 4, 2012 – September 29, 2015 (retired)
11 Oleksandr Usyk (def. Murat Gassiev) July 21, 2018 – November 4, 2019 (moved up to heavyweight)

Light heavyweight
Number Champion Reign
1 Maxie Rosenbloom June 25, 1930 – November 16, 1934
2 Bob Olin November 16, 1934 – October 31, 1935
3 John Henry Lewis October 31, 1935 – June 1939 (Retired)
4 Billy Conn (def. Melio Bettina) July 13, 1939 – May 1941 (moved up to heavyweight)
5 Gus Lesnevich (def. Tami Mauriello) August 26, 1941 – July 26, 1948
6 Freddie Mills July 26, 1948 – January 24, 1950
7 Joey Maxim January 24, 1950 – December 17, 1952
8 Archie Moore December 17, 1952 – May 12, 1962 (moved up to heavyweight)
9 Harold Johnson (def. Doug Jones) May 12, 1962 – June 1, 1963
10 Willie Pastrano June 1, 1963 – March 30, 1965
11 José Torres March 30, 1965 – December 16, 1966
12 Dick Tiger December 16, 1966 – May 24, 1968
13 Bob Foster May 24, 1968 – September 16, 1974 (retired)
14 Víctor Galíndez 1979 – November 30, 1979 (lost to Marvin Johnson)
15 Matthew Saad Muhammad (awarded title by The Ring) November 30, 1979 – December 19, 1981
16 Dwight Muhammad Qawi December 19, 1981 – March 18, 1983
17 Michael Spinks March 18, 1983 – September 21, 1985 (vacated after winning the heavyweight title)
18 Roy Jones Jr. 2001 – May 15, 2004
19 Antonio Tarver May 15, 2004 – December 18, 2004
20 Glen Johnson December 18, 2004 – June 18, 2005
21 Antonio Tarver June 18, 2005 – June 10, 2006
22 Bernard Hopkins June 10, 2006 – April 19, 2008
23 Joe Calzaghe April 19, 2008 – February 6, 2009 (retired)
24 Jean Pascal (def. Chad Dawson) August 14, 2010 – May 21, 2011
25 Bernard Hopkins May 21, 2011 – April 28, 2012
26 Chad Dawson April 28, 2012 – June 8, 2013
27 Adonis Stevenson June 8, 2013 – November 24, 2015 (stripped)
28 Andre Ward (def. Sergey Kovalev) June 17, 2017 – September 21, 2017 (retired)

Super middleweight
Number Champion Reign
1 Joe Calzaghe (def. Jeff Lacy) March 4, 2006 – September 28, 2008 (vacated after winning the Light Heavyweight Title)
2 Andre Ward (def. Carl Froch) December 17, 2011 – February 19, 2015 (The Ring vacated title)
3 Callum Smith (def. George Groves) September 28, 2018 – Present

Middleweight

Men's middleweight
Number Champion Reign
1 Marcel Thil 1933 – September 23, 1937 (vacated title)
2 Freddie Steele (awarded title) September 23, 1937 – 1938 (Stripped)
3 Tony Zale (def. Georgie Abrams) November 28, 1941 – July 16, 1947
4 Rocky Graziano July 16, 1947 – June 10, 1948
5 Tony Zale June 10, 1948 – September 21, 1948
6 Marcel Cerdan September 21, 1948 – June 16, 1949
7 Jake LaMotta June 16, 1949 – February 14, 1951
8 Sugar Ray Robinson February 14, 1951 – July 10, 1951
9 Randy Turpin July 10, 1951 – September 12, 1951
10 Sugar Ray Robinson September 12, 1951 – December 18, 1952 (retired)
11 Carl Olson (def. Randy Turpin) October 21, 1953 – December 9, 1955
12 Sugar Ray Robinson December 9, 1955 – January 2, 1957
13 Gene Fullmer January 2, 1957 – May 1, 1957
14 Sugar Ray Robinson May 1, 1957 – September 23, 1957
15 Carmen Basilio September 23, 1957 – March 25, 1958
16 Sugar Ray Robinson March 28, 1958 – January 22, 1960
17 Paul Pender January 22, 1960 – July 11, 1961
18 Terry Downes July 11, 1961 – April 7, 1962
19 Paul Pender April 7, 1962 – May 7, 1963 (Retired)
20 Dick Tiger (awarded title by The Ring) May 7, 1963 – December 7, 1963
21 Joey Giardello December 7, 1963 – October 21, 1965
22 Dick Tiger October 21, 1965 – April 25, 1966
23 Emile Griffith April 25, 1966 – April 17, 1967
24 Nino Benvenuti April 17, 1967 – September 29, 1967
25 Emile Griffith September 29, 1967 – March 4, 1968
26 Nino Benvenuti March 4, 1968 – November 7, 1970
27 Carlos Monzón November 7, 1970 – August 29, 1977 (retired)
28 Rodrigo Valdez (def. Bennie Briscoe) November 5, 1977 – April 22, 1978
29 Hugo Corro April 22, 1978 – June 30, 1979
30 Vito Antuofermo June 30, 1979 – March 16, 1980
31 Alan Minter March 16, 1980 – September 27, 1980
32 Marvelous Marvin Hagler September 27, 1980 – April 6, 1987
33 Sugar Ray Leonard April 6, 1987 – (retired, then moved up to super middleweight)
34 Sumbu Kalambay (awarded title by The Ring) July 6, 1988 (new ownership discontinued championship policy during Kalambay's reign)
35 Bernard Hopkins (def. Felix Trinidad) September 29, 2001 – July 16, 2005
36 Jermain Taylor July 16, 2005 – September 29, 2007
37 Kelly Pavlik September 29, 2007 – April 17, 2010
38 Sergio Gabriel Martínez April 17, 2010 – June 7, 2014
39 Miguel Cotto June 7, 2014 – November 21, 2015
40 Canelo Álvarez November 21, 2015 – June 2018 (stripped of title)
41 Canelo Álvarez (def. Gennady Golovkin) September 15, 2018 – present

Women's middleweight
Number Champion Reign
1 Claressa Shields (def. Christina Hammer) April 13, 2019 – present

Junior middleweight
Number Champion Reign
1 Oscar Albarado (def. Koichi Wajima) June 4, 1974 – January 21, 1975
2 Koichi Wajima January 21, 1975 – June 7, 1975
3 Jae-Doo Yuh June 7, 1975 – February 17, 1976
4 Koichi Wajima February 17, 1976 – May 18, 1976
5 José Manuel Duran May 18, 1976 – October 8, 1976
6 Miguel Angel Castellini October 8, 1976 – March 5, 1977
7 Eddie Gazo March 5, 1977 – August 9, 1978
8 Masashi Kudo August 9, 1978 – October 24, 1979
9 Ayub Kalule October 24, 1979 – June 25, 1981
10 Sugar Ray Leonard June 25, 1981 – June 25, 1982 (vacated)
11 Thomas Hearns May 1983 – September 1986 (vacated)
12 Oscar De La Hoya (def. Fernando Vargas) September 14, 2002 – September 13, 2003
13 Shane Mosley September 13, 2003 – March 13, 2004
14 Winky Wright March 13, 2004 – November 7, 2005 (moved up to Middleweight)
15 Canelo Álvarez (def. Austin Trout) April 20, 2013 – September 14, 2013
16 Floyd Mayweather Jr. September 14, 2013 – August 10, 2015 (The Ring vacated title)

Welterweight
Number Champion Reign
1 Jimmy McLarnin 1933 – May 28, 1934
2 Barney Ross May 28, 1934 – September 17, 1934
3 Jimmy McLarnin September 17, 1934 – May 28, 1935
4 Barney Ross May 28, 1935 – May 31, 1938
5 Henry Armstrong May 31, 1938 – October 4, 1940
6 Fritzie Zivic October 4, 1940 – July 29, 1941
7 Freddie Cochrane July 29, 1941 – February 1, 1946
8 Marty Servo February 1, 1946 – September 25, 1946 (retired)
9 Sugar Ray Robinson (def. Tommy Bell) December 20, 1946 – 1951
10 Kid Gavilán (def. Billy Graham]) August 29, 1951 – October 20, 1954
11 Johnny Saxton October 20, 1954 – April 1, 1955
12 Tony DeMarco April 1, 1955 – June 10, 1955
13 Carmen Basilio June 10, 1955 – March 14, 1956
14 Johnny Saxton March 14, 1956 – September 12, 1956
15 Carmen Basilio September 12, 1956 – September 23, 1957 (vacated after winning the Middleweight Title)
16 Virgil Akins (def. Vince Martinez) June 6, 1958 – December 5, 1958
17 Don Jordan December 5, 1958 – May 27, 1960
18 Benny Paret May 27, 1960 – April 1, 1961
19 Emile Griffith April 1, 1961 – September 30, 1961
20 Benny Paret September 30, 1961 – March 24, 1962
21 Emile Griffith March 24, 1962 – March 21, 1963
22 Luis Manuel Rodríguez March 21, 1963 – June 8, 1963
23 Emile Griffith June 8, 1963 – April 25, 1966 (vacated after winning the Middleweight Title)
24 Curtis Cokes (def. Jean Josselin) November 28, 1966 – April 18, 1969
25 José Nápoles April 18, 1969 – December 3, 1970
26 Billy Backus December 3, 1970 – June 4, 1971
27 José Nápoles June 4, 1971 – December 6, 1975
28 John Stracey December 6, 1975 – June 22, 1976
29 Carlos Palomino June 22, 1976 – January 14, 1979
30 Wilfred Benítez January 14, 1979 – November 30, 1979
31 Sugar Ray Leonard November 30, 1979 – June 20, 1980
32 Roberto Durán June 20, 1980 – November 25, 1980
33 Sugar Ray Leonard November 25, 1980 – November 9, 1982 (retired)
34 Donald Curry (def. Milton McCrory) December 6, 1985 – September 27, 1986
35 Lloyd Honeyghan September 27, 1986 – October 27, 1987
36 Jorge Vaca October 27, 1987 – March 29, 1988
37 Lloyd Honeyghan March 29, 1988 – February 4, 1989
38 Marlon Starling February 4, 1989 (new ownership discontinued championship policy during Starling's reign)
39 Vernon Forrest (def. Shane Mosley) January 26, 2002 – January 25, 2003
40 Ricardo Mayorga January 25, 2003 – December 13, 2003
41 Cory Spinks December 13, 2003 – February 5, 2005
42 Zab Judah February 5, 2005 – January 7, 2006
43 Carlos Manuel Baldomir January 7, 2006 – November 4, 2006
44 Floyd Mayweather Jr. November 4, 2006 – June 29, 2008 (retired)
45 Floyd Mayweather Jr. (def. Robert Guerrero) May 4, 2013 – September 12, 2015 (retired)

Junior welterweight
Number Champion Reign
1 Duilio Loi December 15, 1962 – January 1963 (retired)
2 Eddie Perkins 1963 – January 18, 1965
3 Carlos Hernández January 18, 1965 – April 29, 1966
4 Sandro Lopopolo April 29, 1966 – April 30, 1967
5 Takeshi Fuji April 30, 1967 – December 12, 1968
6 Nicolino Locche December 12, 1968 – March 10, 1972
7 Alfonso Frazer March 10, 1972 – October 28, 1972
8 Antonio Cervantes October 28, 1972 – March 6, 1976
9 Wilfred Benítez March 6, 1976 – January 14, 1979
10 Antonio Cervantes January 14, 1979 – August 2, 1980
11 Aaron Pryor August 2, 1980 – October 26, 1983 (retired)
12 Kostya Tszyu (def. Zab Judah) November 3, 2001 – June 4, 2005
13 Ricky Hatton June 4, 2005 – May 2, 2009
14 Manny Pacquiao May 2, 2009 – July 23, 2010 (vacated)
15 Danny García (def. Amir Khan) July 14, 2012 – August 1, 2015 (vacated and moved up to welterweight)
16 Terence Crawford (def. Viktor Postol) July 23, 2016 – October 26, 2017 (vacated and moved up to welterweight)
17 Josh Taylor (def. Regis Prograis) October 26, 2019 – present

Lightweight

Men's lightweight
Number Champion Reign
1 Barney Ross June 23, 1933 – 1933 (vacated and moved up to junior welterweight)
2 Tony Canzoneri (def. Lou Ambers) May 10, 1935 – September 3, 1936
3 Lou Ambers September 3, 1936 – August 17, 1938
4 Henry Armstrong August 17, 1938 – August 22, 1939
5 Lou Ambers August 22, 1939 – May 10, 1940
6 Lew Jenkins May 10, 1940 – December 19, 1941
7 Sammy Angott December 19, 1941 – November 13, 1942 (Retired)
8 Ike Williams (def. Bob Montgomery) August 4, 1947 – May 25, 1951
9 Jimmy Carter May 25, 1951 – May 14, 1952
10 Lauro Salas May 14, 1952 – October 15, 1952
11 Jimmy Carter October 15, 1952 – March 5, 1954
12 Paddy DeMarco March 5, 1954 – November 17, 1954
13 Jimmy Carter November 17, 1954 – June 29, 1955
14 Wallace (Bud) Smith June 29, 1955 – August 24, 1956
15 Joe Brown August 24, 1956 – April 21, 1962
16 Carlos Ortiz April 21, 1962 – April 10, 1965
17 Ismael Laguna April 10, 1965 – November 13, 1965
18 Carlos Ortiz November 13, 1965 – June 29, 1968
19 Carlos Cruz June 29, 1968 – February 18, 1969
20 Mando Ramos February 18, 1969 – March 3, 1970
21 Ismael Laguna March 3, 1970 – September 26, 1970
22 Ken Buchanan September 26, 1970 – June 26, 1972
23 Roberto Durán June 26, 1972 – February 2, 1979 (moved up to welterweight)
24 Jim Watt (awarded title by The Ring) April 12, 1981 – June 20, 1981
25 Alexis Argüello June 20, 1981 – February 1983 (moved up to junior welterweight)
26 Julio César Chávez (def. José Luis Ramírez) October 29, 1988 – March 2, 1989 (The Ring vacated title)
27 Pernell Whitaker (def. José Luis Ramírez) August 20, 1989 (new ownership discontinued championship policy during Whitaker's reign)
28 Floyd Mayweather Jr. (def. José Luis Castillo) April 20, 2002 – May 22, 2004 (moved up to junior welterweight)
29 José Luis Castillo (def. Juan Lazcano) June 5, 2004 – May 7, 2005
30 Diego Corrales May 7, 2005 – October 7, 2006
31 Joel Casamayor October 7, 2006 – September 13, 2008
32 Juan Manuel Márquez September 13, 2008 – April 14, 2012 (moved up to junior welterweight)
33 Terence Crawford (def. Ray Beltrán) November 29, 2014 – April 18, 2015 (moved up to junior welterweight)
34 Jorge Linares (def. Anthony Crolla) September 24, 2016 – May 13, 2018
35 Vasyl Lomachenko May 13, 2018 – present

Women's lightweight
Number Champion Reign
1 Katie Taylor (def. Delfine Persoon) June 1, 2019 – present

Junior lightweight
Number Champion Reign
1 Flash Elorde 1963 – June 15, 1967
2 Yoshiaki Numata June 15, 1967 – December 14, 1967
3 Hiroshi Kobayashi December 14, 1967 – July 29, 1971
4 Alfredo Marcano July 29, 1971 – April 25, 1972
5 Ben Villaflor April 25, 1972 – March 13, 1973
6 Kuniaki Shibata March 13, 1973 – October 17, 1973
7 Ben Villaflor October 17, 1973 – October 16, 1976
8 Samuel Serrano October 16, 1976 – August 2, 1980
9 Yasutsune Uehara August 2, 1980 – April 9, 1981
10 Samuel Serrano April 9, 1981 – January 19, 1983
11 Roger Mayweather January 19, 1983 – February 26, 1984
12 Rocky Lockridge February 26, 1984 – May 19, 1985
13 Wilfredo Gómez May 19, 1985 – May 24, 1986
14 Alfredo Layne May 24, 1986 – September 27, 1986
15 Brian Mitchell September 27, 1986 – March 30, 1987
16 Manny Pacquiao (def. Juan Manuel Márquez) March 15, 2008 – July 2008 (moved up to lightweight)

Featherweight
Number Champion Reign
1 Kid Chocolate 1933 –
2 Freddie Miller 1935 – May 11, 1936
3 Petey Sarron May 11, 1936 – October 29, 1937
4 Henry Armstrong October 29, 1937 – December 5, 1938 (vacated)
5 Joey Archibald (def. Leo Rodak) April 18, 1939 – May 20, 1940
6 Harry Jeffra May 20, 1940 – May 12, 1941
7 Joey Archibald May 12, 1941 – September 11, 1941
8 Chalky Wright September 11, 1941 – November 20, 1942
9 Willie Pep November 20, 1942 – October 29, 1948
10 Sandy Saddler October 29, 1948 – February 11, 1949
11 Willie Pep February 11, 1949 – September 8, 1950
12 Sandy Saddler September 8, 1950 – January 21, 1957 (retired)
13 Hogan Bassey (def. Cherif Hamia) June 24, 1957 – March 18, 1959
14 Davey Moore March 18, 1959 – March 21, 1963
15 Sugar Ramos March 21, 1963 – September 26, 1964
16 Vicente Saldivar September 26, 1964 – October 14, 1967 (retired)
17 Johnny Famechon (def. José Legrá) January 21, 1969 – May 9, 1970
18 Vicente Saldivar May 9, 1970 – December 11, 1970
19 Kuniaki Shibata December 11, 1970 – May 19, 1972
20 Clemente Sánchez May 19, 1972 – December 16, 1972 (Vacated)
21 Alexis Argüello (def. Rigoberto Riasco) May 31, 1975 – June 20, 1977 (vacated and moved to junior lightweight)
22 Danny Lopez (def. Roberto Castañón) March 10, 1979 – February 2, 1980
23 Salvador Sánchez February 2, 1980 – August 12, 1982 (died in car accident)
24 Eusebio Pedroza (awarded title by The Ring) September 22, 1982 – June 8, 1985
25 Barry McGuigan June 8, 1985 – June 23, 1986
26 Steve Cruz June 23, 1986 – March 6, 1987
27 Antonio Esparragoza March 6, 1987 (new ownership discontinued championship policy during Esparragoza's reign)
28 Marco Antonio Barrera (def. Érik Morales) June 22, 2002 – November 15, 2003
29 Manny Pacquiao November 15, 2003 – March 19, 2005 (moved up to junior lightweight)
30 Miguel Angel Garcia (def. Orlando Salido) January 19, 2013 – June 15, 2013 (moved up to junior lightweight)

Junior featherweight
Number Champion Reign
1 Wilfredo Gómez (def. Nestor Jimenez) March 9, 1979 – May 1983
2 Paulie Ayala (def. Bones Adams) February 23, 2002 – May 2004 (moved to featherweight)
3 Israel Vázquez (def. Óscar Larios) December 3, 2005 – March 3, 2007
4 Rafael Márquez March 3, 2007 – August 4, 2007
5 Israel Vázquez August 4, 2007 – May 28, 2009 (moved up to featherweight)
6 Nonito Donaire (def. Toshiaki Nishioka) October 13, 2012 – April 13, 2013
7 Guillermo Rigondeaux April 13, 2013 – February 9, 2016 (stripped)

Bantamweight
Number Champion Reign
1 Al Brown (def. Vidal Gregorio) June 18, 1929 – June 1, 1935
2 Baltasar Sangchili June 1, 1935 – June 29, 1936
3 Tony Marino June 29, 1936 – August 1, 1936
4 Sixto Escobar August 31, 1936 – September 23, 1937
5 Harry Jeffra September 23, 1937 – February 20, 1938
6 Sixto Escobar February 20, 1938 – October 4, 1939 (vacated)
7 Lou Salica (def. Tommy Forte) January 13, 1941 – August 7, 1942
8 Manuel Ortiz August 7, 1942 – January 6, 1947
9 Harold Dade January 6, 1947 – March 11, 1947
10 Manuel Ortiz March 11, 1947 – May 31, 1950
11 Vic Toweel May 31, 1950 – November 15, 1952
12 Jimmy Carruthers November 15, 1952 – May 16, 1954 (retired)
13 Robert Cohen (def. Chamrern Songkitrat) September 19, 1954 – June 29, 1956
14 Mario D'Agata June 29, 1956 – April 1, 1957
15 Alphonse Halimi April 1, 1957 – July 8, 1959
16 José Becerra July 8, 1959 – August 30, 1960 (retired)
17 Éder Jofre (def. Piero Rollo) March 25, 1961 – May 17, 1965
18 Fighting Harada May 17, 1965 – February 26, 1968
19 Lionel Rose February 26, 1968 – August 22, 1969
20 Rubén Olivares August 22, 1969 – October 16, 1970
21 Chucho Castillo October 16, 1970 – April 2, 1971
22 Rubén Olivares April 2, 1971 – March 19, 1972
23 Rafael Herrera March 19, 1972 – July 30, 1972
24 Enrique Pinder July 30, 1972 – January 30, 1973
25 Romeo Anaya January 20, 1973 – November 3, 1973
26 Arnold Taylor November 3, 1973 – July 3, 1974
27 Hong Soo-hwan July 3, 1974 – March 14, 1975
28 Alfonso Zamora March 14, 1975 – November 19, 1977
29 Jorge Luján November 19, 1977 – August 29, 1980
30 Julian Solís August 29, 1980 – November 14, 1980
31 Jeff Chandler November 14, 1980 – April 7, 1984
32 Richie Sandoval April 7, 1984 – March 10, 1986
33 Gaby Canizales March 10, 1986 – June 4, 1986
34 Bernardo Piñango June 4, 1986 – March 1987 (moved up to junior featherweight)
35 Shinsuke Yamanaka (def. Anselmo Moreno) September 16, 2016 – August 15, 2017
36 Luis Nery (Tested positive for the banned substance Zilpaterol) August 15, 2017 – September 26, 2017 (stripped)
37 Shinsuke Yamanaka (Reinstated as champion) September 26, 2017 – March 1, 2018
38 Naoya Inoue May 18, 2019 – present

Junior bantamweight
Number Champion Reign
1 Srisaket Sor Rungvisai (def. Juan Francisco Estrada) February 24, 2018 – April 26, 2019
2 Juan Francisco Estrada April 26, 2019 – Present

Flyweight
Number Champion Reign
1 Pancho Villa June 18, 1923 – September 24, 1925 (died)
2 Fidel LaBarba (def. Elky Clark) January 21, 1927 – August 23, 1927 (retired)
3 Benny Lynch (Defeated Small Montana) January 19, 1937 – June 29, 1938 (vacated due to missing weight)
4 Peter Kane (Defeated Jackie Jurich) September 22, 1938 – June 19, 1943
5 Jackie Paterson June 19, 1943 – March 23, 1948
6 Rinty Monaghan March 23, 1948 – April 25, 1950 (retired)
7 Terry Allen (def. Honore Pratesi) April 25, 1950 – August 1, 1950
8 Dado Marino August 1, 1950 – May 19, 1952
9 Yoshio Shirai May 19, 1952 – November 26, 1954
10 Pascual Pérez November 26, 1954 – April 16, 1960
11 Pone Kingpetch April 16, 1960 – October 10, 1962
12 Fighting Harada October 10, 1962 – January 12, 1963
13 Pone Kingpetch January 12, 1963 – September 18, 1963
14 Hiroyuki Ebihara September 18, 1963 – January 23, 1964
15 Pone Kingpetch January 23, 1964 – April 23, 1965
16 Salvatore Burruni April 23, 1965 – June 14, 1966
17 Walter McGowan June 14, 1966 – December 30, 1966
18 Chartchai Chionoi December 30, 1966 – February 23, 1969
19 Efren Torres February 23, 1969 – March 20, 1970
20 Chartchai Chionoi March 20, 1970 – December 7, 1970
21 Erbito Salavarria December 7, 1970 – February 9, 1973
22 Venice Borkhorsor February 9, 1973 – July 10, 1973 (vacated and moved to bantamweight)
23 Miguel Canto (def. Shoji Oguma) January 8, 1975 – March 18, 1979
24 Park Chan-hee March 18, 1979 – May 18, 1980
25 Shoji Oguma May 18, 1980 – May 12, 1981
26 Antonio Avelar May 12, 1981 – March 20, 1982
27 Prudencio Cardona March 20, 1982 – July 24, 1982
28 Freddy Castillo July 24, 1982 – November 6, 1982
29 Eleoncio Mercedes November 6, 1982 – March 15, 1983
30 Charlie Magri March 15, 1983 – September 27, 1983
31 Frank Cedeno September 27, 1983 – January 18, 1984
32 Kōji Kobayashi January 18, 1984 – April 9, 1984
33 Gabriel Bernal April 9, 1984 – October 8, 1984
34 Sot Chitalada October 8, 1984 – July 24, 1988
35 Kim Yong-kang July 24, 1988 (new ownership discontinued championship policy during Kim's reign)
36 Pongsaklek Wonjongkam (def. Kōki Kameda) March 27, 2010 – March 2, 2012
37 Sonny Boy Jaro March 2, 2012 – July 16, 2012
38 Toshiyuki Igarashi July 16, 2012 – April 8, 2013
39 Akira Yaegashi April 8, 2013 – September 5, 2014
40 Román González September 5, 2014 – September 10, 2016 (moved up to junior bantamweight)

Junior flyweight
Number Champion Reign
1 Rosendo Álvarez March 31, 2003 – October 2, 2004 (Lost title on scales)
2 Hugo Cázares (def. Nelson Dieppa) September 30, 2006 – August 25, 2007
3 Iván Calderón August 25, 2007 – August 28, 2010
4 Giovani Segura August 28, 2010 – September 19, 2011 (moved up to flyweight)
5 Donnie Nietes (def. Moisés Fuentes) May 10, 2014 – August 17, 2016 (moved up to flyweight)
6 Ryoichi Taguchi (def. Milan Melindo) December 31, 2017 - May 20, 2018.
7 Hekkie Budler May 20, 2018 – December 31, 2018.
8 Hiroto Kyoguchi December 31, 2018 – present

Strawweight

The Ring has not yet awarded a championship in the strawweight division.

See also

References
  1. "About the Ring". Ring TV. November 5, 2013.
  2. "About The Ring". The Ring. June 26, 2006. Archived from the original on February 21, 2006. Retrieved June 6, 2006.
  3. "The Cyber Boxing Zone". cyberboxingzone.com.
  4. Rold, Cliff. "Boxing's Lineal Mathematics: Champion Versus Champion II". Wail!. CBZ. Retrieved January 29, 2010.
  5. "Boxing News : The Disputed Light Heavyweight Champion of the World". maxboxing.com. Archived from the original on October 15, 2004.
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