List of WBO world champions

This is a list of WBO world champions, showing every world champion certified by the World Boxing Organization (WBO). The WBO is one of the four major governing bodies in professional boxing, and has awarded world championships in 17 different weight classes since 1989.

Heavyweight
No. Name Date Location Defenses
1 Francesco Damiani
def. Johnny du Plooy		 6 May 1989 Syracuse, Italy 1
2 Ray Mercer 11 January 1991 Atlantic City, New Jersey, United States 1
Mercer was stripped of the title in December 1991 for signing for a bout against Larry Holmes instead of mandatory challenger Michael Moorer.[1]
3 Michael Moorer
def. Bert Cooper		 15 May 1992 Atlantic City, New Jersey, United States 0
Moorer vacated the title on 8 February 1993 so that he could be ranked by other sanctioning bodies.
4 Tommy Morrison
def. George Foreman		 7 June 1993 Las Vegas, Nevada, United States 1
5 Michael Bentt 29 October 1993 Tulsa, Oklahoma, United States 0
6 Herbie Hide 19 March 1994 London, England 0
7 Riddick Bowe 11 March 1995 Las Vegas, Nevada, United States 1
Bowe vacated in later 1995 to pursue a rematch with Evander Holyfield. Bowe's only defense was against Jorge Luis González on 17 June 1995 in Las Vegas, Nevada.
8 Henry Akinwande
def. Jeremy Williams		 29 June 1996 Indio, California, United States 2
Akinwande vacated the title on 29 January 1997 at the request of the WBC to become the mandatory challenger of the upcoming fight between Lennox Lewis and Oliver McCall for the vacant belt.[2]
9 Herbie Hide (2)
def. Tony Tucker		 28 June 1997 Norwich, England 2
10 Vitali Klitschko 26 June 1999 London, England, United Kingdom 2
11 Chris Byrd 1 April 2000 Berlin, Germany 0
12 Wladimir Klitschko 14 October 2000 Cologne, Germany 5
13 Corrie Sanders 8 March 2003 Hanover, Germany 0
Sanders vacated in later 2003 to concentrate on a challenge for the WBC belt against Vitali Klitschko.
14 Lamon Brewster
def. Wladimir Klitschko		 10 April 2004 Las Vegas, Nevada, United States 3
15 Siarhei Liakhovich 1 April 2006 Cleveland, Ohio, United States 0
16 Shannon Briggs 4 November 2006 Phoenix, Arizona, United States 0
17 Sultan Ibragimov 2 June 2007 Atlantic City, New Jersey, United States 1
18 Wladimir Klitschko (2) 23 February 2008 New York City, United States 14
19 Tyson Fury 28 November 2015 Düsseldorf, Germany 0
Fury, who had previously withdrawn from a rematch against Wladimir Klitschko before testing positive in a Voluntary Anti-Doping Association (VADA) test for cocaine on 29 September, vacated the title on 12 October 2016 after testing positive a second time, citing his need to focus on treatment for depression.[3]
20 Joseph Parker
def. Andy Ruiz		 10 December 2016 Auckland, New Zealand 2
21 Anthony Joshua 31 March 2018 Cardiff, United Kingdom 1
22 Andy Ruiz Jr. 1 June 2019 New York City, United States 0
23 Anthony Joshua (2) 7 December 2019 Diriyah, Saudi Arabia 1

Junior heavyweight

This weight class is designated as cruiserweight by the WBA, WBC, and IBF.

No. Name Date Location Defenses
1 Boone Pultz
def. Magne Havnå		 3 December 1989 Copenhagen, Denmark 0
2 Magne Havnå 17 May 1990 Aars, Denmark 2
Havnå's last defense was against Tyrone Booze on 15 February 1991 in Randers, Denmark.
3 Tyrone Booze
def. Derek Angol		 25 July 1992 Manchester, England 1
4 Markus Bott 13 February 1993 Hamburg, Germany 0
5 Nestor Hipolito Giovannini 26 June 1993 Hamburg, Germany 1
6 Dariusz Michalczewski 17 December 1994 Hamburg, Germany 0
Michalczewski vacated the title in favor of the WBO Light Heavyweight title, which he already held.
7 Ralf Rocchigiani
def. Carl Thompson		 10 June 1995 Manchester, England, United Kingdom 6
8 Carl Thompson 4 October 1997 Hanover, Germany 2
9 Johnny Nelson 27 March 1999 Derby, England 13
Title vacated on 22 September 2006. Nelson retired after suffering a back injury during training camp for his bout against Enzo Maccarinelli.[4]
10 Enzo Maccarinelli
interim champion promoted		 September 2006 N/A 4
11 David Haye 8 March 2008 London, England 0
Title vacated when Haye decided to move up to Heavyweight in 2008.
12 Victor Emilio Ramírez
interim champion promoted		 February 2009 N/A 1
13 Marco Huck 5 December 2009 Ludwigsburg, Germany 13
14 Krzysztof Głowacki 14 August 2015 Newark, United States 1
15 Oleksandr Usyk 17 September 2016 Gdansk, Poland 6
Usyk vacated the title to move up to heavyweight on 5 June 2019.[5]
16 Krzysztof Głowacki (2)
interim champion promoted		 5 June 2019 N/A 0
17 Mairis Briedis 15 June 2019 Riga, Latvia 0
Briedis stripped of title for not agreeing on an immediate rematch with Glowacki.[6]

Light heavyweight
No. Name Date Location Defenses
1 Michael Moorer
def. Ramzi Hassan		 3 December 1988 Brook Park, Ohio, United States 9
Moorer vacated the title in 1991 in order to move up to Heavyweight. His last defense was against Danny Stonewalker on 15 December 1990 at Pittsburgh, Pennsylvania
2 Leeonzer Barber
def. Tom Collins		 9 May 1991 Leeds, England 4
3 Dariusz Michalczewski 10 September 1994 Hamburg, Germany 23
4 Julio César González 10 October 2003 Hamburg, Germany 0
5 Zsolt Erdei 17 January 2004 Karlsruhe, Germany 11
Erdei vacated the title on 13 November 2009 in order to move up to Cruiserweight. His last defense was against Yuriy Barashian on 10 January 2009 at Magdeburg, Germany
6 Jürgen Brähmer
interim champion promoted		 13 November 2009 N/A 2
Brähmer was stripped of the title on 19 May 2011 after withdrawing from a bout against Nathan Cleverly, citing an eye injury.[7] His last defense was against Mariano Nicolas Plotinsky on 24 April 2010 at Alsterdorf, Germany
7 Nathan Cleverly
interim champion promoted		 19 May 2011 N/A 5
8 Sergey Kovalev 18 August 2013 Cardiff, Wales 8
9 Andre Ward 19 November 2016 Las Vegas, United States 1
Ward retired as the unified WBA/IBF/WBO world champion.[8] His last successful defense was against Sergey Kovalev on 6 June 2017 in Las Vegas, Nevada.
10 Sergey Kovalev (2)
def. Vyacheslav Shabranskyy		 25 November 2017 Madison Square Garden, New York, United States 1
11 Eleider Álvarez 4 August 2018 Hard Rock Hotel & Casino, Atlantic City, United States 0
12 Sergey Kovalev (3) 2 February 2019 Ford Center at The Star, Frisco, Texas, United States 1
13 Saúl Álvarez 2 November 2019 MGM Grand, Las Vegas, Nevada, United States 0
Álvarez vacated on December 17 to move back down to his current preferred weight division

Super middleweight
No. Name Date Location Defenses
1 Thomas Hearns
def. James Kinchen		 4 November 1988 Las Vegas, Nevada, United States 2
Title vacated in 1990. Hearns' last defense was against Michael Olajide on 28 April 1990 in Atlantic City, New Jersey, United States.
2 Chris Eubank
def. Michael Watson		 21 September 1991 London, England 14
3 Steve Collins 18 March 1995 Millstreet, Ireland 7
Collins was stripped of the title in october 1997 after suffering a leg injury during training camp and subsequently withdrawing from his bout against Joe Calzaghe.[9]
4 Joe Calzaghe
def. Chris Eubank		 11 October 1997 Sheffield, England 21
Calzaghe, citing difficulty making weight, vacated the title on 26 September 2008 after moving up to light heavyweight.[10] His last defense was on 3 November 2007 against Mikkel Kessler at Cardiff, Wales
5 Denis Inkin
def. Fulgencio Zuniga 		27 September 2008 Hamburg, Germany 0
6 Károly Balzsay 10 January 2009 Magdeburg, Germany 1
7 Robert Stieglitz 22 August 2009 Budapest, Hungary 6
8 Arthur Abraham 25 August 2012 Berlin, Germany 1
9 Robert Stieglitz (2) 23 March 2013 Magdeburg, Saxony-Anhalt Germany 2
10 Arthur Abraham (2) 1 March 2014 Magdeburg, Saxony-Anhalt Germany 5
11 Gilberto Ramírez 9 April 2016 Las Vegas, United States 5
Ramírez vacated the title on 13 May 2019 to move up to light heavyweight.[11]
12 Billy Joe Saunders
def. Shefat Isufi		 18 May 2019 Stevenage, England 2

Middleweight
No. Name Date Location Defenses
1 Doug DeWitt
def. Robbie Sims		 18 April 1989 Atlantic City, New Jersey, United States 1
2 Nigel Benn 29 April 1990 Atlantic City, New Jersey, United States 1
3 Chris Eubank 18 November 1990 Birmingham, England 3
Eubank vacated the title on 21 September 1991 to move up to Super Middleweight. His last defense was against Michael Watson on 22 June 1991 in London, England.
4 Gerald McClellan
def. John Mugabi		 20 November 1991 London, England 0
McClellan vacated the title on 24 February 1992 to move up to Super Middleweight.
5 Chris Pyatt
def. Sumbu Kalambay		 19 May 1993 Leicester, England 2
6 Steve Collins 11 May 1994 Sheffield, England 0
Collins vacated the title on 18 March 1995 to move up to Super Middleweight.
7 Lonnie Bradley
def. David Mendez		 19 May 1995 Primm, Nevada, United States 6
Bradley vacated title in 1997 to have eye surgery to repair a detached retina.
8 Otis Grant
def. Ryan Rhodes		 13 December 1997 Sheffield, England, United Kingdom 1
Grant vacated the title on 14 November 1998 to move up to light heavyweight and challenge Roy Jones Jr. for his unified WBC/WBA world titles.[12]
9 Bert Schenk
def. Freeman Barr		 30 January 1999 Cottbus, Germany 1
Schenk vacated title Mid-1999 due to achilles injury. He had one successful defense was against Juan Ramon Medina on 22 May 1999 in Budapest, Hungary.
10 Jason Matthews
def. Ryan Rhodes		 17 July 1999 Doncaster, England 0
11 Armand Krajnc 27 November 1999 Lübeck, Germany 3
Krajnc vacated the title on 4 June 2001, while in a dispute with Universum Box-Promotion; the WBO unanimously voted on 17 September 2001 that Krajnc never actually vacated and remained as WBO champion.
12 Harry Simon 6 April 2002 Copenhagen, Denmark 0
Harry Simon awarded interim title on 21 July 2001 after defeating Hacine Cherifi. At the time it was believed that Krajnc had vacated the title, however, the WBO later ruled that Krajnc remained as champion. Title vacated November 2002 after Simon sentenced to prison due to his role in fatal car crash.
13 Héctor Javier Velazco
def. Andras Galfi		 10 May 2003 Buenos Aires, Argentina 0
14 Felix Sturm 13 September 2003 Berlin, Germany 1
15 Oscar De La Hoya 5 June 2004 Las Vegas, Nevada, United States 0
16 Bernard Hopkins 18 September 2004 Las Vegas, Nevada, United States 1
17 Jermain Taylor 16 July 2005 Las Vegas, Nevada, United States 3
18 Kelly Pavlik 29 September 2007 Atlantic City, New Jersey, United States 3
19 Sergio Gabriel Martínez 17 April 2010 Atlantic City, New Jersey, United States 0
Martínez, who held the WBC super welterweight title at the time he defeated unified middleweight world champion Kelly Pavlik, was stripped of the WBO middleweight title on 29 May 2010 because he missed the WBO's deadline to decide on which weight class he would continue to fight in.[13]
20 Dmitry Pirog
def. Daniel Jacobs		 31 July 2010 Las Vegas, Nevada, United States 3
Pirog stripped of title August 2012 after being unable to defend due to back injury. Last defense was against Nobuhiro Ishida on 5 January 2012 at Moscow, Russia
21 Hassan N'Dam N'Jikam
interim champ promoted		 25 August 2012 NA 0
22 Peter Quillin 20 October 2012 Washington D.C., United States 3
Quillin vacated the title on 4 September 2014 after pulling out of his scheduled bout against mandatory challenger Matt Korobov.[14]
23 Andy Lee
def. Matt Korobov		 13 December 2014 Las Vegas, United States 1
24 Billy Joe Saunders 19 December 2015 Manchester, England 3
Saunders tested positive for the banned stimulant oxilofrine before his bout against mandatory challenger Demetrius Andrade and vacated the title on 11 October 2018, citing his lack of time to appeal.[15]
25 Demetrius Andrade
def. Walter Kautondokwa		 20 October 2018 Boston, United States 3

Junior middleweight
No. Name Date Location Defenses
1 John David Jackson
def. Lupe Aquino		 8 December 1988 Detroit, Michigan, United States 6
Jackson vacated the title in 1993 to move up to Middleweight. His last defense was against Michele Mastrodonato on 19 December 1992 in San Severo, Italy.
2 Verno Phillips
def. Lupe Aquino		 30 October 1993 Phoenix, Arizona, United States 4
3 Paul Jones 22 November 1995 Sheffield, England 0
Jones was stripped of the title after withdrawing from a bout against no. 1 contender Bronco McKarton 26 February 1996.[16]
4 Bronco McKart
def. Santos Cardona		 1 March 1996 Indio, California, United States 0
5 Ronald "Winky" Wright 17 May 1996 Monroe, Michigan, United States 3
6 Harry Simon 22 August 1998 Temba, South Africa 4
Simon vacated the title in July 2001 to move up to Middleweight. His last defense was against Wayne Alexander on 10 February 2001 in Widnes, England, United Kingdom.
7 Daniel Santos
def. Yori Boy Campas		 16 March 2002 Las Vegas, Nevada, United States 4
8 Sergiy Dzindziruk 3 December 2005 Magdeburg, Germany 6
Dzindziruk was stripped of the title due to inactivity caused by injuries. As a result, Zaurbek Baysangurov was promoted from interim champion.
9 Zaurbek Baysangurov
interim champion promoted		 5 October 2011 N/A 2
Baysangurov was stripped of the title in July 2013 after withdrawing from a bout against mandatory challenger Demetrius Andrade.[17]
10 Demetrius Andrade
def. Vanes Martirosyan		 9 November 2013 Corpus Christi, Texas 1
Andrade was stripped of the title due to inactivity on 31 July 2015.[18]
11 Liam Smith
def. John Thompson		 10 October 2015 Manchester, England 2
12 Canelo Álvarez 17 September 2016 Arlington, Texas 0
Álvarez vacated the title on 19 May 2017 to move up to middleweight
13 Miguel Cotto
def. Yoshihiro Kamegai		 26 August 2017 Carson, California 0
14 Sadam Ali 2 December 2017 New York City, New York, United States 0
15 Jaime Munguia 12 May 2018 Verona, New York, United States 5
Munguia vacated the title on 23 November 2019 to move up to middleweight
16 Patrick Teixeira
interim champion promoted		 4 December 2019 Paradise, Nevada, United States 0

Welterweight
No. Name Date Location Defenses
1 Genaro Léon
def. Danny Garcia		 6 May 1989 Santa Ana, California, United States 0
Title vacated in 1989.
2 Manning Galloway
def. Al Hamza		 15 December 1989 Yabucoa, Puerto Rico 7
3 Gert Bo Jacobsen 12 February 1993 Randers, Denmark 0
Jacobsen was stripped of the title in October 1993 after withdrawing from a bout against Eamonn Loughran due to suffering from the flu.[19]
4 Eamonn Loughran
def. Lorenzo Smith		 16 October 1993 Belfast, Northern Ireland 5
5 José Luis López 13 April 1996 Liverpool, England, United Kingdom 1
López was stripped of the title in November 1996 after testing positive for marijuana.[20]
6 Mihai Leu
def. Santiago Samaniego		 22 February 1997 Hamburg, Germany 1
Title vacated when Leu retired. His only defense was against Michael Carruth on 20 September 1997 in Aachen, Germany.
7 Ahmed Kotiev
def. Leonard Townsend		 14 February 1998 Stuttgart, Germany 4
8 Daniel Santos 6 May 2000 Neuss, Germany 2
Title vacated on 21 July 2001 when a bout between Santos and Antonio Margarito in Bayamón, Puerto Rico ends in a no-contest in the first round.
9 Antonio Margarito
def. Antonio Díaz		 16 March 2002 Las Vegas, Nevada, United States 7
10 Paul Williams 14 July 2007 Carson City, California, United States 0
11 Carlos Quintana 9 February 2008 Temecula, California, United States 0
12 Paul Williams (2) 7 June 2008 Uncasville, Connecticut, United States 0
Williams vacated the title on 14 November 2008 to move up in weight and fight for the vacant interim WBO junior middleweight world championship.[21]
13 Miguel Cotto 21 February 2009 New York, United States 1
14 Manny Pacquiao 14 November 2009 Las Vegas, Nevada, United States 3
15 Timothy Bradley 9 June 2012 Las Vegas, Nevada, United States 2
16 Manny Pacquiao (2) 12 April 2014 Las Vegas, Nevada, United States 1
17 Floyd Mayweather Jr. 2 May 2015 Las Vegas, Nevada, United States 0
Mayweather was stripped of the title on 6 July 2015 for missing the deadline to pay the WBO's sanctioning fee from his 2 May bout against Manny Pacquiao and for continuing to hold world championship titles in multiple weight classes, a violation of the WBO's rules and regulations.[22]
18 Timothy Bradley (2)
interim champion promoted		 6 July 2015 N/A 1
Bradley vacated the title on 9 February 2016 after he signed to face Manny Pacquiao in a rubber match instead of mandatory challenger Sadam Ali.[23]
19 Jessie Vargas
def. Sadam Ali		 5 March 2016 Washington, District of Columbia, United States 0
20 Manny Pacquiao (3) 5 November 2016 Las Vegas, Nevada, United States 0
21 Jeff Horn 2 July 2017 Brisbane, Australia 1
22 Terence Crawford 9 June 2018 Las Vegas, Nevada, United States 4

Junior welterweight
No. Name Date Location Defenses
1 Héctor Camacho
def. Ray Mancini		 6 March 1989 Reno, Nevada, United States 2
2 Greg Haugen 23 February 1991 Las Vegas, Nevada, United States 0
Haugen was stripped of the title after testing positive for marijuana.[24]
3 Héctor Camacho (2)
def. Greg Haugen		 19 May 1991 Reno, Nevada, United States 0
Title vacated in 1992.
4 Carlos González
def. Jimmy Paul		 29 June 1992 Inglewood, California, United States 3
5 Zack Padilla 7 June 1993 Las Vegas, Nevada, United States 4
Title vacated when Padilla retired after his final defense against Juan Laporte in Los Angeles, California on the 24th of July 1994.
6 Sammy Fuentes
def. Fidel Avendano		 20 February 1995 Inglewood, California, United States 1
7 Giovanni Parisi 9 March 1996 Milan, Italy 5
8 Carlos González (2) 29 May 1998 Pesaro, Italy 0
9 Randall Bailey 15 May 1999 Miami, Florida, United States 2
10 Ener Julio 22 July 2000 Miami, Florida, United States 0
Title vacated when a routine eye exam reveals that Julio has cataracts.
11 DeMarcus Corley
def. Felix Flores		 30 June 2001 Las Vegas, Nevada, United States 2
12 Zab Judah 12 July 2003 Las Vegas, Nevada, United States 1
Judah vacated the title to move up to the Welterweight division.
13 Miguel Cotto
def. Kelson Pinto		 11 September 2004 San Juan, Puerto Rico, United States 6
Cotto vacated the title to move up to Welterweight and challenge for the WBA title His last defense was against Paul Malignaggi on 10 June 2006 in New York City, New York.
14 Ricardo Torres
def. Mike Arnaoutis		 18 November 2006 Las Vegas, Nevada, United States 3
15 Kendall Holt
def. Ricardo Torres		 5 July 2008 Las Vegas, Nevada, United States 1
16 Timothy Bradley 4 April 2009 Montreal, Quebec, Canada 1
Bradley vacated the title after moving up to welterweight on 27 June 2012.[25] His last defense was against Joel Casamayor on 12 November 2011 in Las Vegas.
17 Juan Manuel Márquez
interim champion promoted		 27 June 2012 Mexico City, Mexico 0
Márquez vacated the title to move up to Welterweight and challenge Timothy Bradley for the WBO belt.
18 Mike Alvarado
interim champion promoted		 12 October 2013 Las Vegas, Nevada, United States 0
19 Ruslan Provodnikov 19 October 2013 Denver, Colorado, United States 0
20 Chris Algieri 14 June 2014 Brooklyn, New York, United States 0
Algieri was stripped of the title due to his upcoming bout against Manny Pacquiao for the WBO welterweight world championship.[26]
21 Terence Crawford
def. Thomas Dulorme		 18 April 2015 Arlington, Texas, United States 6
Crawford vacated the title to move up to welterweight on 26 October 2017.[27]
22 Maurice Hooker
def. Terry Flanagan		 9 June 2018 Manchester, England, United Kingdom 2
23 José Ramírez 28 July 2019 Arlington, Texas, United States 1

Lightweight
No. Name Date Location Defenses
1 Mauricio Aceves
def. Amancio Castro		 6 May 1989 Santa Ana, California, United States 1
2 Dingaan Thobela 22 September 1990 Brownsville, Texas, United States 2
Thobela's last defense was against Antonio Rivera on 14 September 1991 in Johannesburg, South Africa.
3 Giovanni Parisi
def. Javier Altamirano		 25 September 1992 Voghera, Italy 2
Parisi's last defense was against Antonio Rivera on 24 September 1993 in Rome, Italy.
4 Oscar De La Hoya
def. Jorge Páez		 29 July 1994 Las Vegas, Nevada, United States 6
De La Hoya's last defense was against Jesse James Leija on 15 December 1995 in New York City, New York, United States.
5 Artur Grigorian
def. Antonio Rivera		 13 April 1996 Hamburg, Germany 17
6 Acelino Freitas 3 January 2004 Mashantucket, Connecticut, United States 0
7 Diego Corrales 7 August 2004 Mashantucket, Connecticut, United States 1
Corrales was stripped of the title after deciding to pursue a rematch with José Luis Castillo instead of his mandatory challenger Acelino Freitas.[28]
8 Acelino Freitas (2)
def. Zahir Raheem		 29 April 2006 Mashantucket, Connecticut, United States 0
9 Juan Díaz 28 April 2007 Mashantucket, Connecticut, United States 1
10 Nate Campbell 8 March 2008 Cancún, Mexico 0
Campbell was stripped of his unified IBF/WBO world titles after failing to make weight the day before his bout against Ali Funeka.[29]
11 Juan Manuel Márquez
def. Juan Díaz		 28 February 2009 Houston, Texas, United States 2
Márquez vacates to move up to welterweight. Last defense on 27 November 2010 at Las Vegas, Nevada against Michael Katsidis
12 Ricky Burns
Interim champ promoted		 6 January 2012 4
13 Terence Crawford 1 March 2014 Glasgow, Scotland 2
Crawford vacates to fight for the super lightweight title. Last defense against Raymundo Beltrán on 29 November 2014 at Omaha, Nebraska, United States
14 Terry Flanagan
def. Jose Zepeda		 11 July 2015 Manchester, England 5
Flanagan vacated the title to move up to junior welterweight.[30]
15 Ray Beltrán
def. Paulus Moses		 16 February 2018 Reno, Nevada 0
16 José Pedraza 25 August 2018 Glendale, Arizona 0
17 Vasyl Lomachenko 8 December 2018 New York City, New York 3
18 Teófimo López 17 October 2020 Paradise, Nevada 0

Junior lightweight
No. Name Date Location Defenses
1 John John Molina
def. Juan Laporte		 29 April 1989 San Juan, Puerto Rico 0
Title vacated in later 1989.
2 Kamel Bou Ali
def. Antonio Rivera		 9 December 1989 Teramo, Italy 2
3 Daniel Londas 21 March 1992 San Rufo, Italy 0
4 Jimmi Bredahl 4 September 1992 Copenhagen, Denmark 1
5 Oscar De La Hoya 5 March 1994 Los Angeles, California, United States 1
De La Hoya vacated the title in order to move up to the Lightweight division. Only defense against Giorgio Campanella on April 1994 at Las Vegas, Nevada.
6 Regilio Tuur
def. Eugene Speed		 24 September 1994 Rotterdam, Netherlands 6
Tuur retired as the WBO junior lightweight world champion.[31]
7 Barry Jones
def. Wilson Palacio		 19 December 1997 London, England 0
Jones lost his boxing license after a brain scan found an anomaly. The WBO vacated his title before Jones regained his license
8 Anatoly Alexandrov
def. Julien Lorcy		 16 May 1998 Paris, France 1
9 Acelino Freitas 7 August 1999 Le Cannet, France 11
Freitas vacated the title to move up to the lightweight division. His last defense was against Jorge Rodrigo Barrios on 9 August 2003 in Miami, Florida.
10 Diego Corrales
def. Joel Casamayor		 6 March 2004 Mashantucket, Connecticut, United States 0
Corrales vacated the title to move up to the lightweight division.
11 Mike Anchondo
def. Pablo Chacón		 15 July 2004 Dallas, Texas, United States 0
12 Jorge Rodrigo Barrios 8 April 2005 Miami, Florida, United States 2
Barrios was stripped of the title after failing to make weight the day before his scheduled bout against Joan Guzmán.[32]
13 Joan Guzmán
def. Jorge Rodrigo Barrios		 16 September 2006 Las Vegas, Nevada, United States 2
Guzmán vacated the title to move up to lightweight after continued difficulties negotiating a bout against mandatory challenger Alex Arthur.[33]
14 Alex Arthur
interim champion promoted		 May 2008 N/A 0
15 Nicky Cook 9 September 2008 Manchester, England 0
16 Román Martínez 14 March 2009 Manchester, England 2
17 Ricky Burns 4 September 2010 Glasgow, Scotland 3
Burns vacated the title after deciding to move up to Lightweight. Last defense against Nicky Cook on July 2011 at Liverpool, England
18 Adrien Broner
def. Vicente Martín Rodríguez		 26 November 2011 Cincinnati, Ohio, United States 1
Broner was stripped of the title after failing to make weight the day before his scheduled bout against mandatory challenger Vicente Escobedo.[34]
19 Román Martínez
def. Miguel Beltrán Jr.		 15 September 2012 Las Vegas, Nevada, United States 2
20 Mikey Garcia 9 November 2013 Corpus Christi, Texas, United States 1
Garcia vacated the title to move up to junior welterweight.[35]
21 Orlando Salido
interim champion promoted		 14 October 2014 N/A 0
22 Román Martínez 11 April 2015 San Juan, Puerto Rico 1
23 Vasyl Lomachenko 11 June 2016 New York City, New York, United States 4
Lomachenko vacated the title after moving up in weight and defeating Jorge Linares for the WBA lightweight world championship.[36]
24 Masayuki Ito
def. Christopher Díaz		 28 July 2018 Kissimmee, United States 1
25 Jamel Herring 25 May 2019 Kissimmee, United States 1

Featherweight
No. Name Date Location Defenses
1 Maurizio Stecca
def. Pedro Nolasco		 28 January 1989 Milan, Italy 1
2 Louie Espinoza 11 November 1989 Rimini, Italy 0
3 Jorge Páez 7 April 1990 Winchester, Nevada, U.S. 1
Paez's only defense was against Troy Dorsey on 8 July 1990 in Winchester, NevadaU.S.
4 Maurizio Stecca (2)
def. Armando Juan Reyes		 26 January 1991 Sassari, Italy 2
5 Colin McMillan 16 February 1992 London, England 0
6 Rubén Darío Palacio 26 September 1992 London, England 0
Palacio was stripped of the title after failing a pre-fight medical examination due to testing positive for HIV.[37]
7 Steve Robinson
def. John Davison		 17 April 1993 Washington, England 7
8 Naseem Hamed 30 September 1995 Cardiff, Wales 15
Hamed vacated the title after HBO refused to approve mandatory challenger István Kovács as his opponent.[38]
9 István Kovács
def. Antonio Díaz		 27 January 2001 Munich, Germany 0
10 Pablo Chacón 16 June 2001 Budapest, Hungary 2
Chacón's last defense was against Victor Polo on 19 January 2002 in London, England
11 Scott Harrison
def. Victor Santiago		 8 June 2002 Glasgow, Scotland 2
12 Manuel Medina 12 July 2003 Glasgow, Scotland 0
13 Scott Harrison (2) 29 November 2003 Glasgow, Scotland 6
Harrison vacated the title after withdrawing from a bout against Nicky Cook because he could no longer make the featherweight limit.[39]
14 Juan Manuel Márquez
interim champion promoted		 2006 N/A 0
Márquez vacates to move up to super featherweight. Only defense against Jimrex Jaca in November 2006 at Hidalgo, Texas
15 Steven Luevano 14 July 2007 London, England 5
16 Juan Manuel López 23 January 2010 New York City, New York, U.S. 1
17 Orlando Salido 16 April 2011 Bayamón, Puerto Rico 2
18 Mikey Garcia 19 January 2013 New York City, New York, U.S. 0
Garcia was stripped of the title after failing to make weight the day before his scheduled bout against Juan Manuel López.[40]
19 Orlando Salido (2)
def. Orlando Cruz		 12 October 2013 Paradise, Nevada, U.S. 0
Salido was stripped of the title after failing to make weight the day before his scheduled bout against Vasyl Lomachenko.[41]
20 Vasyl Lomachenko
def. Gary Russell Jr.		 21 June 2014 Carson, California, U.S. 3
Lomachenko vacated the title after moving up in weight and defeating Román Martínez for the WBO junior lightweight world championship.[42]
21 Óscar Valdez
def. Matías Rueda		 23 July 2016 Paradise, Nevada, U.S. 6
Valdez vacated title and moved up to super featherweight
22 Shakur Stevenson
def. Joet Gonzalez		 26 October 2019 Reno, Nevada, U.S. 0
Stevenson vacated title and moved up to super featherweight
23 Emanuel Navarrete
def. Ruben Villa		 9 October 2020 Paradise, Nevada, U.S. 0

Junior featherweight
No. Name Date Location Defenses
1 Kenny Mitchell
def. Julio Gervacio		 29 April 1989 San Juan, Puerto Rico 1
2 Valerio Nati 9 December 1989 Teramo, Italy 0
3 Orlando Fernandez 12 May 1990 Sassari, Italy 0
4 Jesse Benavides 24 May 1991 Corpus Christi, Texas, United States 1
5 Duke McKenzie 15 October 1992 London, England 0
6 Daniel Jiménez 9 June 1993 London, England 4
7 Marco Antonio Barrera 31 March 1995 Anaheim, California, United States 8
8 Junior Jones 22 November 1996 Tampa, Florida, United States 1
9 Kennedy McKinney 18 April 1997 New York City, New York, United States 0
McKinney vacates to fight for featherweight title.
10 Marco Antonio Barrera (2)
def. Richie Wenton		 31 October 1998 Atlantic City, New Jersey, United States 2
11 Marco Antonio Barrera (3)
reinstated as champion		 March 2000 2
Title vacated when Barrera won the vacant IBO Featherweight title, defeating Naseem Hamed in Las Vegas, Nevada. His last defense was against Jesús Salud on 1 December 2000 also in Las Vegas.
12 Agapito Sánchez
def. Jorge Monsalvo		 23 June 2001 Las Vegas, Nevada, United States 1
Title stripped due to inactivity. Only defense was a draw against Manny Pacquiao on 11 November 2001 at San Francisco, California
13 Joan Guzmán
def. Jorge Monsalvo		 17 August 2002 Cardiff, Wales 2
The WBO stripped Guzman of the title due to his not making weight for a defense against Marcos Licona, scheduled for 6 November. His last defense was against Fernando Beltrán, Jr. on 22 April 2005 in Hidalgo, Texas, United States.
14 Daniel Ponce de León
def. Sod Looknongyangtoy		 29 October 2005 Tucson, Arizona, United States 6
15 Juan Manuel López 7 June 2008 Atlantic City, New Jersey, United States 5
Juan Manuel López vacated the title to move up to Featherweight. Last defense was on 10 October 2009 against Rogers Mtagwa at the Madison Square Garden, New York
16 Wilfredo Vázquez Jr.
def. Marvin Sonsona		 27 February 2010 Bayamón, Puerto Rico 2
17 Jorge Arce 7 May 2011 MGM Grand, Las Vegas 1
Arce vacated the title to move down to bantamweight.[43]
18 Nonito Donaire
def. Wilfredo Vázquez Jr.		 4 February 2012 San Antonio, Texas 3
19 Guillermo Rigondeaux 13 April 2013 New York, New York 3
Rigondeaux was stripped of the title due to inactivity.[44]
20 Nonito Donaire (2)
def. César Juárez		 11 December 2015 San Juan, Puerto Rico 1
21 Jessie Magdaleno 5 November 2016 Las Vegas, United States 1
22 Isaac Dogboe 28 April 2018 Philadelphia, USA 1
23 Emanuel Navarrete 8 December 2018 New York, USA 5
24 Angelo Leo 1 August 2020 Uncasville, USA 0
25 Stephen Fulton 23 January 2021 Uncasville, USA 0

Bantamweight
No. Name Date Location Defenses
1 Israel Contreras
def. Maurizio Lupino		 3 February 1989 Caracas, Venezuela 1
Contreras vacated the title in order to challenge Luisito Espinosa for the WBA title.
2 Gaby Canizales
def. Miguel Lora		 12 March 1991 Auburn Hills, Michigan, United States 0
3 Duke McKenzie 30 June 1991 London, England 2
4 Rafael del Valle 13 May 1992 London, England 2
5 Alfred Kotey 30 July 1994 London, England 2
6 Daniel Jiménez 21 October 1995 London, England 1
7 Robbie Regan 26 April 1996 Cardiff, Wales 0
Title vacated when Regan retired.
8 Jorge Eliécer Julio
def. Oscar Maldonado		 28 July 1997 Inglewood, California, United States 3
9 Johnny Tapia 8 January 2000 Albuquerque, New Mexico, United States 1
Tapia vacated to fight Paulie Ayala at super bantamweight.
10 Mauricio Martínez
def. Lester Fuentes		 4 September 2000 Manchester, England 1
11 Cruz Carbajal 15 March 2002 Veracruz, Mexico 2
12 Ratanachai Sor Vorapin 7 May 2004 Bangkok, Thailand 1
13 Jhonny González 29 October 2005 Tucson, Arizona, United States 1
14 Gerry Peñalosa 11 August 2007 Sacramento, California, United States 1
Title stripped due to Peñalosa not defending the belt for a year.
15 Fernando Montiel
def. Diego Oscar Silva		 28 March 2009 Baja California, Mexico 2
16 Nonito Donaire 19 February 2011 Las Vegas, Nevada, United States 2
Donaire vacated to move up to super bantamweight.
17 Jorge Arce
def. Angky Angkotta		 26 November 2011 Plaza de Toros Rea, Mazatlan, Sinaloa, Mexico 0
Arce vacated to fight at super bantamweight against Nonito Donaire.
18 Pungluang Sor Singyu
def. A. J. Banal		 20 October 2012 Pasay City, Metro Manila, Philippines 0
19 Paulus Ambunda 2 March 2013 Windhoek, Namibia 0
20 Tomoki Kameda 1 August 2013 Cebu, Philippines 3
Kameda's request to make his fight with Jamie McDonnell a unification bout was rejected by the WBO as McDonnell was only the "regular" champion which is considered a secondary title by the WBO. As a result, Kameda relinquished his title.
21 Pungluang Sor Singyu
def. Ryo Akaho		 8 August 2015 Ratchaburi, Thailand 1
22 Marlon Tapales 27 July 2016 Ayutthaya, Thailand 0
Tapales was stripped of the title after failing to make weight the day before his bout against Shohei Omori.[45]
23 Zolani Tete
interim champion promoted		 23 April 2017 N/A 3
24 John Riel Casimero 30 November 2019 Birmingham, England 1

Junior bantamweight
No. Name Date Location Defenses
1 José Ruíz Matos
def. Bebis Rojas		 29 April 1989 San Juan, Puerto Rico 4
2 José Quirino 22 February 1992 Las Vegas, Nevada, United States 0
3 Johnny Bredahl 4 September 1992 Copenhagen, Denmark 3
Bredahl's last defense was against Eduardo Nazario on 25 March 1994 in Aakirkeby, Denmark.
4 Johnny Tapia
def. Henry Martínez		 14 October 1994 Albuquerque, New Mexico, United States 13
Tapia's last defense was against Rodolfo Blanco on 13 February 1998 in Albuquerque, New Mexico.
5 Victor Godoi
def. Pedro Morquecho		 7 November 1998 Chubut, Argentina 0
6 Diego Morales 7 June 1999 Tijuana, Mexico 1
7 Adonis Rivas 20 November 1999 Las Vegas, Nevada, United States 2
8 Pedro Alcázar 16 June 2001 Panama City, Panama 1
9 Fernando Montiel 22 June 2002 Las Vegas, Nevada, United States 1
10 Mark Johnson 16 August 2003 Uncasville, Connecticut, United States 1
11 Iván Hernández 25 September 2004 Memphis, Tennessee, United States 0
12 Fernando Montiel (2) 9 April 2005 El Paso, Texas, United States 6
Montiel's's last defense was against Luis Maldonado on 31 May 2008 in Mexico.
13 José López
def. Pramuansak Posuwan		 28 March 2009 Bayamón, Puerto Rico 0
14 Marvin Sonsona 4 September 2009 Rama, Ontario, Canada 0
Sonsona was stripped of the title after failing to make weight on the day of his bout against Alejandro Hernández.[46]
15 Jorge Arce
def. Angky Angkota		 30 January 2010 Mexico City, Mexico 0
Arce had to vacate the title upon his move to bantamweight division.
16 Omar Andrés Narváez
def. Everth Briceño		 15 May 2010 Buenos Aires, Argentina 11
17 Naoya Inoue 30 December 2014 Tokyo, Japan 7
Inoue vacated the title to move up to bantamweight
18 Donnie Nietes
def. Kazuto Ioka		 31 December 2018 Macao, China 0
Donnie Nietes vacated the title to pursue a career-defining fight.[47]
19 Kazuto Ioka
def. Aston Palicte		 19 June 2019 Chiba City, Japan 2

Flyweight
No. Name Date Location Defenses
1 Elvis Álvarez
def. Miguel Mercedes		 3 March 1989 Medellín, Colombia 0
Álvarez vacated the title due to lack of interest in it.
2 Isidro Pérez
def. Angel Rosario		 18 August 1990 Ponce, Puerto Rico 2
3 Pat Clinton 18 March 1992 Glasgow, Scotland 1
4 Jacob Matlala 15 May 1993 Glasgow, Scotland 3
5 Alberto Jiménez 11 February 1995 Hammanskraal, South Africa 5
6 Carlos Gabriel Salazar 13 December 1996 Buenos Aires, Argentina 5
7 Ruben Sánchez León 14 August 1998 Mexicali, Mexico 1
8 José Antonio López Bueno 23 April 1999 Zaragoza, Spain 1
Title vacated in later 1999.
9 Isidro García
def. José López		 18 December 1999 Indio, California, United States 1
10 Fernando Montiel 15 December 2000 Ciudad Obregón, Mexico 3
Montiel vacated the title to move up to super flyweight. His las defense was 9 September 2001 against José López in Reno, Nevada, United States
11 Adonis Rivas
def. Jair Jimenez		 4 May 2002 Managua, Nicaragua 0
12 Omar Andrés Narváez 13 July 2002 Buenos Aires, Argentina 16
Narváez vacated the title to move up to super flyweight. His last defense was on 26 June 2009 against Omar Soto at the Luna Park, Buenos Aires
13 Julio César Miranda
def. Richie Mepranum		 12 June 2010 Puebla, Mexico 3
14 Brian Viloria 16 July 2011 Honolulu, Hawaii, United States 3
15 Juan Francisco Estrada 6 April 2013 Macao, China 5
Estrada vacated the title to move up to junior bantamweight.[48]
16 Zou Shiming
def. Prasitsak Phaprom		 5 November 2016 Las Vegas, United States 0
17 Sho Kimura 28 July 2017 Shanghai, China 2
18 Kosei Tanaka 24 September 2018 Nagoya, Japan 3
Tanaka vacated the title to move up to junior bantamweight.[49]
19 Junto Nakatani
def. Giemel Magramo		 6 November 2020 Las Vegas, United States 0

Junior flyweight
No. Name Date Location Defenses
1 José de Jesús
def. Fernando Martínez		 19 May 1989 San Juan, Puerto Rico 3
de Jesús was stripped of the title after failing to defend it in a specific time period. His last defense was against Abdi Pohan on 10 November 1990 in Jakarta, Indonesia.
2 Josué Camacho
def. Eddie Vallejo		 31 July 1992 San Juan, Puerto Rico 1
3 Michael Carbajal 15 July 1994 Phoenix, Arizona, United States 0
Carbajal failed to defend the title he had just won, looking forward instead to have another fight with Humberto González 4 months later.
4 Paul Weir
def. Paul Oulden		 23 November 1994 Irvine, Scotland 1
5 Jacob Matlala 18 November 1995 Glasgow, Scotland 2
Matlala elected to take a shot against Michael Carbajal rather than defend his title. His last defense of the title was against Mickey Cantwell on 8 February 1997 in Millwall, London.
6 Jesús Chong
def. Eric Griffin		 31 May 1997 Las Vegas, Nevada, United States 0
7 Melchor Cob Castro 25 August 1997 Inglewood, California, United States 0
8 Juan Domingo Córdoba 17 January 1998 Santiago del Estero, Argentina 1
9 Jorge Arce 5 December 1998 Tijuana, Mexico 1
10 Michael Carbajal (2) 31 July 1999 Tijuana, Mexico 0
Carbajal automatically vacated the title after retiring that same year.
11 Masibulele Makepula
def. Jacob Matlala		 19 February 2000 Brakpan, South Africa 0
Title vacated in 2000.
12 Nelson Dieppa
def. Andy Tabanas		 14 April 2001 New York City, United States 5
13 Hugo Cázares 30 April 2005 San Juan, Puerto Rico 4
14 Iván Calderón 25 August 2007 Guaynabo, Puerto Rico 6
15 Giovani Segura 28 August 2010 Guaynabo, Puerto Rico 1
Segura vacated the title to move up to Flyweight. His last defense of the title was on 2 April 2011 against Iván Calderón in Baja California, Mexico.
16 Jesús Géles
interim champ promoted		 April 2011 NA 0
17 Ramón García Hirales 30 April 2011 Mexico City, Mexico 0
18 Donnie Nietes 8 October 2011 Bacolod, Philippines 9
Nietes vacated the title to move up to flyweight.[50]
19 Kosei Tanaka
def. Moisés Fuentes		 31 December 2016 Gifu, Japan 2
Tanaka vacated the title to move up to flyweight.[51]
20 Ángel Acosta 2 December 2017 New York City, New York, United States 3
21 Elwin Soto 21 June 2019 Indio, California, United States 2

Mini flyweight
No. Name Date Location Defenses
1 Rafael Torres
def. Yamil Caraballo		 30 August 1989 Santo Domingo, Dominican Republic 1
Torres' only defense was against Husni Ray on 31 July 1990 in Jakarta, Indonesia.
2 Paul Weir
def. Fernando Martínez		 15 May 1993 Glasgow, Scotland 1
Weir vacated the title to move up in weight and challenge Josué Camacho for a junior flyweight world title.[52]
3 Alex Sánchez
def. Orlando Malone		 22 December 1993 El Condado, San Juan, Puerto Rico 6
4 Ricardo López 23 August 1997 New York City, New York, United States 0
López vacated all his titles at minimumweight to move up to light flyweight.
5 Eric Jamili
def. Mickey Cantwell		 19 December 1997 London, England, United Kingdom 0
6 Kermin Guardia 30 May 1998 Las Vegas, Nevada, United States 3
Guardia vacated the title to move up to light flyweight. His last defense was against Juan Alfonso Keb Baas on 6 April 2001 in Mérida, Yucatán, Mexico.
7 Jorge Mata
def. Reynaldo Frutos		 29 June 2002 Palma, Majorca, Spain 1
8 Eduardo Ray Márquez 28 March 2003 Madrid, Spain 0
9 Iván Calderón 3 May 2003 Las Vegas, Nevada, United States 11
Calderón vacated the title to move up to light flyweight. His last defense of the title was on 28 April 2007 against Ronald Barrera in Barranquilla, Colombia.
10 Donnie Nietes
def. Pornsawan Porpramook		 30 September 2007 Cebu City, Cebu, Philippines 4
Nietes vacated the title to move up in weight and challenge Ramón García Hirales for the WBO junior flyweight world championship.
11 Raúl García
interim champion promoted		 25 February 2011 NA 1
12 Moisés Fuentes 27 August 2011 Guadalajara, Mexico 2
Fuentes vacated the title to move up to light flyweight. His last defense of the title was on 6 October 2012 against Iván Calderón in Bayamón, Puerto Rico.
13 Merlito Sabillo
interim champion promoted		 19 April 2013 NA 2
14 Francisco Rodríguez Jr. 22 March 2014 Monterey, Mexico 1
Rodríguez vacated the title to move up to flyweight. His only defense of the title was on 9 August 2014 against Katsunari Takayama in Monterrey, Mexico.
15 Katsunari Takayama
def. Go Odaira		 31 December 2014 Osaka, Japan 0
Takayama vacated his WBO title to skip mandatory challenger in favor of a fight with former champion Fahlan Sakkreerin
16 Kosei Tanaka
def. Julián Yedras		 30 May 2015 Komaki, Japan 1
Tanaka vacated the title to move up to junior flyweight.[53]
17 Katsunari Takayama (2)
def. Riku Kano		 20 August 2016 Sanda, Japan 0
Takayama announced retirement from professional boxing in order to concentrate on training for the 2020 Summer Olympics
18 Tatsuya Fukuhara
interim champion promoted		 14 April 2017 N/A 0
19 Ryuya Yamanaka 27 August 2017 Ashikita, Japan 1
20 Vic Saludar 13 July 2018 Kobe, Japan 1
21 Wilfredo Mendez 24 August 2019 San Juan, Puerto Rico 2

See also

References
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