List of WBO world champions

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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.

Boxers who won the title but was immediately stripped and the title bout being overturned to a no contest will not be listed.

Current champion
Most consecutive title defenses

Heavyweight[edit]

No. Name Date Defenses
1 Italy Francesco Damiani
(def. Johnny du Plooy)
6 May 1989 1
2 United States Ray Mercer 11 January 1991 – 28 December 1991 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 United States Michael Moorer
(def. Bert Cooper)
15 May 1992 – 8 February 1993 0
Moorer vacated the title so that he could be ranked by other sanctioning bodies.[2]
4 United States Tommy Morrison
(def. George Foreman)
7 June 1993 1
5 United Kingdom Michael Bentt 29 October 1993 0
6 United Kingdom Herbie Hide 19 March 1994 0
7 United States Riddick Bowe 11 March 1995 – 5 May 1996 1
Bowe was stripped of the title when he rejected Don King's purse offer.[3]
8 United Kingdom Henry Akinwande
(def. Jeremy Williams)
29 June 1996 – 29 January 1997 2
Akinwande vacated the title 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.[4]
9 United Kingdom Herbie Hide (2)
(def. Tony Tucker)
28 June 1997 2
10 Ukraine Vitali Klitschko 26 June 1999 2
11 United States Chris Byrd 1 April 2000 0
12 Ukraine Wladimir Klitschko 14 October 2000 5
13 South Africa Corrie Sanders 8 March 2003 – 9 October 2003 0
Sanders vacated the title to sign with Don King.[5]
14 United States Lamon Brewster
(def. Wladimir Klitschko)
10 April 2004 3
15 Belarus Siarhei Liakhovich 1 April 2006 0
16 United States Shannon Briggs 4 November 2006 0
17 Russia Sultan Ibragimov 2 June 2007 1
18 Ukraine Wladimir Klitschko (2) 23 February 2008 14
19 United Kingdom Tyson Fury 28 November 2015 – 12 October 2016 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Fury, who had previously withdrawn from a rematch against Wladimir Klitschko before testing positive in a Voluntary Anti-Doping Association (VADA) test for cocaine on 29 September, vacated the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.[6]
20 New Zealand Joseph Parker
(def. Andy Ruiz Jr.)
10 December 2016 2
21 United Kingdom Anthony Joshua 31 March 2018 1
22 United States Andy Ruiz Jr. 1 June 2019 0
23 United Kingdom Anthony Joshua (2) 7 December 2019 1
24 Ukraine Oleksandr Usyk 25 September 2021 – present 0

Junior heavyweight[edit]

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

No. Name Date Defenses
1 United States Boone Pultz
(def. Magne Havnå)
3 December 1989 0
2 Norway Magne Havnå 17 May 1990 – 15 February 1991 2
Havnå vacates the title.
3 United States Tyrone Booze
(def. Derek Angol)
25 July 1992 1
4 Germany Markus Bott 13 February 1993 0
5 Argentina Nestor Hipolito Giovannini 26 June 1993 1
6 Poland Dariusz Michalczewski 17 December 1994 – March 1995 0
Michalczewski vacated the title in favor of the WBO light heavyweight title, which he already held.
7 Germany Ralf Rocchigiani
(def. Carl Thompson)
10 June 1995 6
8 United Kingdom Carl Thompson 4 October 1997 2
9 United Kingdom Johnny Nelson 27 March 1999 – 22 September 2006 13
Nelson retired after suffering a back injury during training camp for his bout against Enzo Maccarinelli.[7]
10 United Kingdom Enzo Maccarinelli
(interim champion promoted)
22 September 2006 4
11 United Kingdom David Haye 8 March 2008 – 14 July 2008 0
Haye vacates the title to move up to heavyweight.[8]
12 Argentina Victor Emilio Ramírez
(interim champion promoted)
February 2009 1
13 Germany Marco Huck 5 December 2009 13
14 Poland Krzysztof Głowacki 14 August 2015 1
15 Ukraine Oleksandr Usyk 17 September 2016 – 5 June 2019 6
Usyk vacated the title to move up to heavyweight.[9]
16 Poland Krzysztof Głowacki (2)
(interim champion promoted)
5 June 2019 0
17 Latvia Mairis Briedis 15 June 2019 – 25 November 2019 0
Briedis stripped of title for not agreeing on an immediate rematch with Głowacki.[10]
18 United Kingdom Lawrence Okolie
(def. Krzysztof Głowacki)
20 March 2021 – present 1

Light heavyweight[edit]

No. Name Date Defenses
1 United States Michael Moorer
(def. Ramzi Hassan)
3 December 1988 – 1991 9
Moorer vacated the title to move up to heavyweight.
2 United States Leeonzer Barber
(def. Tom Collins)
9 May 1991 4
3 Poland Dariusz Michalczewski 10 September 1994 23
4 Mexico Julio César González 10 October 2003 0
5 Hungary Zsolt Erdei 17 January 2004 – 13 November 2009 11
Erdei vacated the title to move up to cruiserweight.[11]
6 Germany Jürgen Brähmer
(interim champion promoted)
13 November 2009 – 19 May 2011 2
Brähmer was stripped of the title after withdrawing from a bout against Nathan Cleverly, citing an eye injury.[12]
7 United Kingdom Nathan Cleverly
(interim champion promoted)
19 May 2011 5
8 Russia Sergey Kovalev 18 August 2013 8
9 United States Andre Ward 19 November 2016 – 21 September 2017 1
Ward retires.[13]
10 Russia Sergey Kovalev (2)
(def. Vyacheslav Shabranskyy)
25 November 2017 1
11 Colombia Eleider Álvarez 4 August 2018 0
12 Russia Sergey Kovalev (3) 2 February 2019 1
13 Mexico Canelo Álvarez 2 November 2019 – 17 December 2019 0
Álvarez vacated the title to move down to super middleweight.[14]
14 United States Joe Smith Jr.
(def. Maxim Vlasov)
10 April 2021 – present 1

Super middleweight[edit]

No. Name Date Defenses
1 United States Thomas Hearns
(def. James Kinchen)
4 November 1988 – 20 May 1991 2
Hearns's title was vacated on WBO's April 1991 ratings posted on 8 May.[15] He later moved up to light heavyweight.
2 United Kingdom Chris Eubank
(def. Michael Watson)
21 September 1991 14
3 Republic of Ireland Steve Collins 18 March 1995 – 2 October 1997 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.[16]
4 United Kingdom Joe Calzaghe
(def. Chris Eubank)
11 October 1997 – 26 September 2008 21
Calzaghe, citing difficulty making weight, vacated the title after moving up to light heavyweight.[17]
5 Russia Denis Inkin
(def. Fulgencio Zuniga)
27 September 2008 0
6 Hungary Károly Balzsay 10 January 2009 1
7 Germany Robert Stieglitz 22 August 2009 6
8 Germany Arthur Abraham 25 August 2012 1
9 Germany Robert Stieglitz (2) 23 March 2013 2
10 Germany Arthur Abraham (2) 1 March 2014 5
11 Mexico Gilberto Ramírez 9 April 2016 – 13 May 2019 5
Ramírez vacates the title to move up to light heavyweight.[18]
12 United Kingdom Billy Joe Saunders
(def. Shefat Isufi)
18 May 2019 2
13 Mexico Canelo Álvarez 8 May 2021 – present 1

Middleweight[edit]

No. Name Date Defenses
1 United States Doug DeWitt
(def. Robbie Sims)
18 April 1989 1
2 United Kingdom Nigel Benn 29 April 1990 1
3 United Kingdom Chris Eubank 18 November 1990 – 17 July 1991 3
Eubank was expected to move up to super middleweight,[19] the title was then reportedly vacated 1 day after.[20]
4 United States Gerald McClellan
(def. John Mugabi)
20 November 1991 – 2 April 1993 0
McClellan vacated the title to move up to super middleweight.[21]
5 United Kingdom Chris Pyatt
(def. Sumbu Kalambay)
19 May 1993 2
6 Republic of Ireland Steve Collins 11 May 1994 – 22 April 1995 0
Collins vacated the title to stay super middleweight.[22]
7 United States Lonnie Bradley
(def. David Mendez)
19 May 1995 – 7 November 1997 6
Rhodes and Grant was supposedly going to fight for the interim title because of Bradley's injury,[23] but was later changed to the vacant title.[24]
8 Jamaica Otis Grant
(def. Ryan Rhodes)
13 December 1997 – 14 November 1998 1
Grant vacated the title to move up to light heavyweight and challenge Roy Jones Jr.[25]
9 Germany Bert Schenk
(def. Freeman Barr)
30 January 1999 – 14 July 1999 1
Schenk vacated the title due to acute lumbago.[26]
10 United Kingdom Jason Matthews
(def. Ryan Rhodes)
17 July 1999 0
11 Sweden Armand Krajnc 27 November 1999 3
Krajnc vacated the title on 4 June 2001, while in a dispute with Universum Box-Promotion. However the WBO unanimously voted on 17 September 2001 that Krajnc had remained WBO champion throught the dispute.
12 Namibia Harry Simon 6 April 2002 – 8 July 2003 0
Simon was involved in a car accident[27] and was sidelined for 8 months resulting in being stripped of the title.[28]
13 Argentina Héctor Velazco
(interim champion promoted)
8 July 2003 0
14 Germany Felix Sturm 13 September 2003 1
15 United States Oscar De La Hoya 5 June 2004 0
16 United States Bernard Hopkins 18 September 2004 1
17 United States Jermain Taylor 16 July 2005 3
18 United States Kelly Pavlik 29 September 2007 3
19 Argentina Sergio Martínez 17 April 2010 – 29 May 2010 0
Martínez, who held the WBC junior middleweight title at that time, was stripped of the WBO middleweight title because he missed the WBO's deadline to decide on which weight class he would continue to fight in.[29]
20 Russia Dmitry Pirog
(def. Daniel Jacobs)
31 July 2010 – 25 August 2012 3
Pirog is stripped of title for choosing to fight Gennady Golovkin instead of mandatory challenger Hassan N'Dam N'Jikam.[30]
21 Cameroon Hassan N'Dam N'Jikam
(interim champion promoted)
25 August 2012 0
22 United States Peter Quillin 20 October 2012 – 4 September 2014 3
Quillin vacated the title after pulling out of his scheduled bout against mandatory challenger Matt Korobov.[31]
23 Republic of Ireland Andy Lee
(def. Matt Korobov)
13 December 2014 1
24 United Kingdom Billy Joe Saunders 19 December 2015 – 11 October 2018 3
Saunders tested positive for the banned stimulant oxilofrine before his bout against mandatory challenger Demetrius Andrade and vacated the title citing his lack of time to appeal.[32]
25 United States Demetrius Andrade
(def. Walter Kautondokwa)
20 October 2018 – present 5

Junior middleweight[edit]

No. Name Date Defenses
1 United States John David Jackson
(def. Lupe Aquino)
8 December 1988 – 17 February 1990 1
The title was vacated after an incorrect NC call in his bout against Martin Camara.[33]
2 United States John David Jackson (2)
(def. Chris Pyatt)
23 October 1990 – 5 August 1993 3
Jackson vacated the title to move up to middleweight.[34]
3 Belize Verno Phillips
(def. Lupe Aquino)
30 October 1993 4
4 United Kingdom Paul Jones 22 November 1995 – 26 February 1996 0
Jones was stripped of the title after withdrawing from a bout against no. 1 contender Bronco McKart.[35]
5 United States Bronco McKart
(def. Santos Cardona)
1 March 1996 0
6 United States Winky Wright 17 May 1996 3
7 Namibia Harry Simon 22 August 1998 – 27 November 2001 4
Simon vacated the title to move up to middleweight.[36]
8 Puerto Rico Daniel Santos
(def. Yori Boy Campas)
16 March 2002 4
9 Ukraine Sergiy Dzindziruk 3 December 2005 – 5 October 2011 6
Dzindziruk was stripped of the title due to inactivity caused by injuries.[37]
10 Russia Zaurbek Baysangurov
(interim champion promoted)
5 October 2011 – 22 July 2013 2
Baysangurov was stripped of the title in July 2013 after withdrawing from a bout against mandatory challenger Demetrius Andrade.[38]
11 United States Demetrius Andrade
(def. Vanes Martirosyan)
9 November 2013 – 31 July 2015 1
Andrade was stripped of the title due to inactivity.[39]
12 United Kingdom Liam Smith
(def. John Thompson)
10 October 2015 2
13 Mexico Canelo Álvarez 17 September 2016 – 21 May 2017 0
Álvarez intends to stay at middleweight. The title is vacated on WBO's May 2017 rankings.[40]
14 Puerto Rico Miguel Cotto
(def. Yoshihiro Kamegai)
26 August 2017 0
15 United States Sadam Ali 2 December 2017 0
16 Mexico Jaime Munguia 12 May 2018 – 23 November 2019 5
Munguia vacated the title to move up to middleweight.[41]
17 Brazil Patrick Teixeira
(interim champion promoted)
4 December 2019 0
18 Argentina Brian Castaño 13 February 2021 – present 1

Welterweight[edit]

No. Name Date Defenses
1 Mexico Genaro Léon
(def. Danny Garcia)
6 May 1989 – 28 November 1989 0
Léon's title was vacated on WBO's November 1989 ratings posted on 28 November.[42]
2 United States Manning Galloway
(def. Al Hamza)
15 December 1989 7
3 Denmark Gert Bo Jacobsen 12 February 1993 – 13 October 1993 0
Jacobsen was stripped of the title after withdrawing from a bout against Eamonn Loughran due to suffering from the flu.[43]
4 Republic of Ireland Eamonn Loughran
(def. Lorenzo Smith)
16 October 1993 5
5 Mexico José Luis López 13 April 1996 – 21 November 1996 1
López was stripped of the title after testing positive for marijuana.[44]
6 Romania Mihai Leu
(def. Santiago Samaniego)
22 February 1997 – 1997 1
Leu retires.
7 Russia Ahmed Kotiev
(def. Leonard Townsend)
14 February 1998 4
8 Puerto Rico Daniel Santos 6 May 2000 – 5 December 2001 2
Santos vacated the title to move up to junior middleweight.[45]
9 Mexico Antonio Margarito
(def. Antonio Díaz)
16 March 2002 7
10 United States Paul Williams 14 July 2007 0
11 Puerto Rico Carlos Quintana 9 February 2008 0
12 United States Paul Williams (2) 7 June 2008 – 14 November 2008 0
Williams vacated the title to move up in weight and fight for the vacant WBO interim junior middleweight title.[46]
13 Puerto Rico Miguel Cotto
(def. Kelson Pinto)
21 February 2009 1
14 Philippines Manny Pacquiao 14 November 2009 3
15 United States Timothy Bradley 9 June 2012 2
16 Philippines Manny Pacquiao (2) 12 April 2014 1
17 United States Floyd Mayweather Jr. 2 May 2015 – 6 July 2015 0
Mayweather is stripped of the title 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.[47]
18 United States Timothy Bradley (2)
(interim champion promoted)
6 July 2015 – 9 February 2016 1
Bradley vacated the title after he chose to fight Manny Pacquiao instead of mandatory challenger Sadam Ali.[48]
19 United States Jessie Vargas
(def. Sadam Ali)
5 March 2016 0
20 Philippines Manny Pacquiao (3) 5 November 2016 0
21 Australia Jeff Horn 2 July 2017 1
22 United States Terence Crawford 9 June 2018 – present 5

Junior welterweight[edit]

No. Name Date Defenses
1 Puerto Rico Héctor Camacho
(def. Ray Mancini)
6 March 1989 2
2 United States Greg Haugen 23 February 1991 0
3 Puerto Rico Héctor Camacho (2) 19 May 1991 – 15 May 1992 0
Camacho vacated the title to challenge the WBC champion Julio Cesar Chavez.[49]
4 Mexico Carlos González
(def. Jimmy Paul)
29 June 1992 3
5 United States Zack Padilla 7 June 1993 – 1 January 1995 4
Padilla was experiencing continuous severe headaches and was found to have a small blood clot near his brain.[50] The title was vacated.[51]
6 Puerto Rico Sammy Fuentes
(def. Fidel Avendano)
20 February 1995 1
7 Italy Giovanni Parisi 9 March 1996 5
8 Mexico Carlos González (2) 29 May 1998 0
9 United States Randall Bailey 15 May 1999 2
10 Colombia Ener Julio 22 July 2000 – 25 June 2001 0
Julio vacated the title when a routine eye exam reveals that he has cataracts.[52]
11 United States DeMarcus Corley
(def. Felix Flores)
30 June 2001 2
12 United States Zab Judah 12 July 2003 – 18 June 2004 1
Judah vacated the title to move up to the welterweight division.[53]
13 Puerto Rico Miguel Cotto
(def. Kelson Pinto)
11 September 2004 – 27 October 2006 6
Cotto vacated the title to move up to welterweight.[54]
14 Colombia Ricardo Torres
(def. Mike Arnaoutis)
18 November 2006 3
15 United States Kendall Holt 5 July 2008 1
16 United States Timothy Bradley 4 April 2009 – 27 June 2012 3
Bradley vacated the title after moving up to welterweight.[55]
17 Mexico Juan Manuel Márquez
(interim champion promoted)
27 June 2012 – 12 October 2013 0
Márquez's title is vacated after moving up and challenging WBO welterweight champion Timothy Bradley.[56]
18 United States Mike Alvarado
(interim champion promoted)
12 October 2013 0
19 Russia Ruslan Provodnikov 19 October 2013 0
20 United States Chris Algieri 14 June 2014 – 2 November 2014 0
Algieri vacated the title due to moving up and challenging WBO welterweight champion Manny Pacquiao.[57]
21 United States Terence Crawford
(def. Thomas Dulorme)
18 April 2015 – 26 October 2017 6
Crawford vacated the title to move up to welterweight.[58]
22 United States Maurice Hooker
(def. Terry Flanagan)
9 June 2018 2
23 United States José Ramírez 28 July 2019 1
24 United Kingdom Josh Taylor 22 May 2021 – present 0

Lightweight[edit]

No. Name Date Defenses
1 Mexico Mauricio Aceves
(def. Amancio Castro)
6 May 1989 1
2 South Africa Dingaan Thobela 22 September 1990 – 14 June 1992 2
Thobela's title was vacated after failing to find an opponent by 14 June; the deadline set by the WBO.[59]
3 Italy Giovanni Parisi
(def. Javier Altamirano)
25 September 1992 – 23 January 1994 2
Parisi vacates the title to move up to junior welterweight.[60]
4 United States Oscar De La Hoya
(def. Jorge Páez)
29 July 1994 – 9 February 1996 6
De La Hoya vacates the title to move up to junior welterweight.[61]
5 Uzbekistan Artur Grigorian
(def. Antonio Rivera)
13 April 1996 17
6 Brazil Acelino Freitas 3 January 2004 0
7 United States Diego Corrales 7 August 2004 – 14 January 2006 1
Corrales was stripped of the title after deciding to pursue a rematch with José Luis Castillo instead of his mandatory challenger Acelino Freitas.[62]
8 Brazil Acelino Freitas (2)
(def. Zahir Raheem)
29 April 2006 0
9 United States Juan Díaz 28 April 2007 1
10 United States Nate Campbell 8 March 2008 – 13 February 2009 0
Campbell was stripped of his unified IBF/WBO world titles after failing to make weight the day before his bout against Ali Funeka.[63]
11 Mexico Juan Manuel Márquez
(def. Juan Díaz)
28 February 2009 – 26 January 2012 2
Márquez is stripped of the title for moving up to junior welterweight.[64]
12 United Kingdom Ricky Burns
(interim champion promoted)
26 January 2012 4
13 United States Terence Crawford 1 March 2014 – 5 March 2015 2
Crawford vacates the title to move up to junior welterweight.[65]
14 United Kingdom Terry Flanagan
(def. Jose Zepeda)
11 July 2015 – 26 October 2017 5
Flanagan vacated the title to move up to junior welterweight.[66]
15 Mexico Ray Beltrán
(def. Paulus Moses)
16 February 2018 0
16 Puerto Rico José Pedraza 25 August 2018 0
17 Ukraine Vasiliy Lomachenko 8 December 2018 3
18 United States Teófimo López 17 October 2020 0
19 Australia George Kambosos Jr. 27 November 2021 – present 0

Junior lightweight[edit]

No. Name Date Defenses
1 Puerto Rico John John Molina
(def. Juan Laporte)
29 April 1989 – 15 October 1989 0
Molina was stripped the title after fighting for the IBF title.[67]
2 Tunisia Kamel Bou Ali
(def. Antonio Rivera)
9 December 1989 2
3 France Daniel Londas 21 March 1992 0
4 Denmark Jimmi Bredahl 4 September 1992 1
5 United States Oscar De La Hoya 5 March 1994 – 5 June 1994 1
De La Hoya vacated the title to move up to lightweight.[68]
6 Netherlands Regilio Tuur
(def. Eugene Speed)
24 September 1994 – 17 January 1997 6
Tuur retired as the WBO junior lightweight world champion.[69]
7 United Kingdom Barry Jones
(def. Wilson Palacio)
19 December 1997 – 1998 0
Jones lost his boxing license after a brain scan found an anomaly. The WBO vacated his title before Jones regained his license.
8 Russia Anatoly Alexandrov
(def. Julien Lorcy)
16 May 1998 1
9 Brazil Acelino Freitas 7 August 1999 – 18 January 2004 11
Freitas vacated the title to stay at lightweight.[70]
10 United States Diego Corrales
(def. Joel Casamayor)
6 March 2004 – 18 June 2004 0
Corrales vacated the title to move up to lightweight.[71]
11 United States Mike Anchondo
(def. Pablo Chacón)
15 July 2004 0
12 Argentina Jorge Rodrigo Barrios 8 April 2005 – 15 September 2006 2
Barrios was stripped of the title after failing to make weight the day before his scheduled bout against Joan Guzmán.[72]
13 Dominican Republic Joan Guzmán
(def. Jorge Rodrigo Barrios)
16 September 2006 – 14 May 2008 2
Guzmán vacated the title to move up to lightweight after continued difficulties negotiating a bout against mandatory challenger Alex Arthur.[73]
14 United Kingdom Alex Arthur
(interim champion promoted)
14 May 2008 0
15 United Kingdom Nicky Cook 9 September 2008 0
16 Puerto Rico Román Martínez 14 March 2009 2
17 United Kingdom Ricky Burns 4 September 2010 – 13 September 2011 3
Burns vacated the title to move up to lightweight.[74]
18 United States Adrien Broner
(def. Vicente Martín Rodríguez)
26 November 2011 – 20 July 2012 1
Broner was stripped of the title after failing to make weight the day before his scheduled bout against mandatory challenger Vicente Escobedo.[75]
19 Puerto Rico Román Martínez
(def. Miguel Beltrán Jr.)
15 September 2012 2
20 United States Mikey Garcia 9 November 2013 – 14 October 2014 1
Garcia vacates the title to move up to junior welterweight.[76]
21 Mexico Orlando Salido
(interim champion promoted)
14 October 2014 0
22 Puerto Rico Román Martínez 11 April 2015 1
23 Ukraine Vasiliy Lomachenko 11 June 2016 – 23 May 2018 4
Lomachenko vacated the title after moving up in weight and defeating Jorge Linares for the WBA lightweight world championship.[77]
24 Japan Masayuki Ito
(def. Christopher Díaz)
28 July 2018 1
25 United States Jamel Herring 25 May 2019 3
26 United States Shakur Stevenson 23 October 2021 – present 0

Featherweight[edit]

No. Name Date Defenses
1 Italy Maurizio Stecca
(def. Pedro Nolasco)
28 January 1989 1
2 United States Louie Espinoza 11 November 1989 0
3 Mexico Jorge Páez 7 April 1990 – 16 January 1991 1
Paez vacates the title to move up to junior lightweight.[78]
4 Italy Maurizio Stecca (2)
(def. Armando Juan Reyes)
26 January 1991 2
5 United Kingdom Colin McMillan 16 February 1992 0
6 Colombia Rubén Darío Palacio 26 September 1992 – 16 April 1993 0
Palacio was stripped of the title after failing a pre-fight medical examination due to testing positive for HIV.[79]
7 United Kingdom Steve Robinson
(def. John Davison)
17 April 1993 7
8 United Kingdom Naseem Hamed 30 September 1995 – 5 October 2000 15
Hamed vacated the title after HBO refused to approve mandatory challenger István Kovács as his opponent.[80]
9 Hungary István Kovács
(def. Antonio Díaz)
27 January 2001 0
10 Argentina Pablo Chacón 16 June 2001 2
11 United Kingdom Scott Harrison 19 October 2002 2
12 Mexico Manuel Medina 12 July 2003 0
13 United Kingdom Scott Harrison (2) 29 November 2003 – 6 December 2006 6
Harrison vacated the title after withdrawing from a bout against Nicky Cook because he could no longer make the featherweight limit.[81]
14 Mexico Juan Manuel Márquez
(interim champion promoted)
6 December 2006 – 3 April 2007 0
Márquez vacated the title to stay at junior lightweight.[82]
15 United States Steven Luevano
(def. Nicky Cook)
14 July 2007 5
16 Puerto Rico Juan Manuel López 23 January 2010 1
17 Mexico Orlando Salido 16 April 2011 2
18 United States Mikey Garcia 19 January 2013 – 14 June 2013 0
Garcia was stripped of the title after failing to make weight the day before his scheduled bout against Juan Manuel López.[83]
19 Mexico Orlando Salido (2)
(def. Orlando Cruz)
12 October 2013 – 28 February 2014 0
Salido was stripped of the title after failing to make weight the day before his scheduled bout against Vasiliy Lomachenko.[84]
20 Ukraine Vasiliy Lomachenko
(def. Gary Russell Jr.)
21 June 2014 – 21 July 2016 3
Lomachenko vacated the title after moving up in weight and defeating Román Martínez for the WBO junior lightweight world championship.[85]
21 Mexico Óscar Valdez
(def. Matías Rueda)
23 July 2016 – 2 August 2019 6
Valdez vacates the title to move up to junior lightweight.[86]
22 United States Shakur Stevenson
(def. Joet Gonzalez)
26 October 2019 – 7 July 2020 0
Stevenson vacated the title to move up to junior lightweight.[87]
23 Mexico Emanuel Navarrete
(def. Ruben Villa)
9 October 2020 – present 2

Junior featherweight[edit]

No. Name Date Defenses
1 United States Kenny Mitchell
(def. Julio Gervacio)
29 April 1989 1
2 Italy Valerio Nati 9 December 1989 0
3 Puerto Rico Orlando Fernandez 12 May 1990 0
4 United States Jesse Benavides 24 May 1991 1
5 United Kingdom Duke McKenzie 15 October 1992 0
6 Puerto Rico Daniel Jiménez 9 June 1993 4
7 Mexico Marco Antonio Barrera 31 March 1995 8
8 United States Junior Jones 22 November 1996 1
9 United States Kennedy McKinney 18 April 1997 – 30 May 1998 0
McKinney vacated the title to challenge WBO featherweight champion Naseem Hamed however, the fight was cancelled after Hamed suffered an injury to his right hand during training.[88]
10 Mexico Marco Antonio Barrera (2)
(def. Richie Wenton)
31 October 1998 2
11 Mexico Érik Morales 19 February 2000 – 24 February 2000 0
Morales was stripped of the title after the WBO committee disagreed with the scorecards in his bout against Barrera. Barrera was also reinstated as the champion.[89]
12 Mexico Marco Antonio Barrera (3)
(reinstated)
24 February 2000 – 1 June 2001 2
Barrera vacated the title to stay at featherweight.[90]
13 Dominican Republic Agapito Sánchez
(def. Jorge Monsalvo)
23 June 2001 – 13 August 2002 1
Sánchez is stripped of the title for failing a pre-fight eye test.[91]
14 Dominican Republic Joan Guzmán
(def. Fabio Daniel Oliva)
17 August 2002 – 4 July 2005 2
Guzmán vacated the title to move up to featherweight.[92]
15 Mexico Daniel Ponce de León
(def. Sod Looknongyangtoy)
29 October 2005 6
16 Puerto Rico Juan Manuel López 7 June 2008 – 29 January 2010 5
Juan Manuel López vacated the title to move up to featherweight.[93]
17 Puerto Rico Wilfredo Vázquez Jr.
(def. Marvin Sonsona)
27 February 2010 2
18 Mexico Jorge Arce 7 May 2011 – 18 November 2011 1
Arce vacated the title to move down to bantamweight.[94]
19 Philippines Nonito Donaire
(def. Wilfredo Vázquez Jr.)
4 February 2012 3
20 Cuba Guillermo Rigondeaux 13 April 2013 – 28 October 2015 3
Rigondeaux was stripped of the title due to inactivity.[95]
21 Philippines Nonito Donaire (2)
(def. César Juárez)
11 December 2015 1
22 United States Jessie Magdaleno 5 November 2016 1
23 Ghana Isaac Dogboe 28 April 2018 1
24 Mexico Emanuel Navarrete 8 December 2018 – 11 July 2020 5
Navarrete vacated the title to move up to featherweight.[96]
25 United States Angelo Leo
(def. Tramaine Williams)
1 August 2020 0
26 United States Stephen Fulton Jr. 23 January 2021 – present 1

Bantamweight[edit]

No. Name Date Defenses
1 Venezuela Israel Contreras
(def. Maurizio Lupino)
3 February 1989 – 20 February 1991 1
Contreras vacated the title in order to challenge Luisito Espinosa for the WBA title.[97]
2 United States Gaby Canizales
(def. Miguel Lora)
12 March 1991 0
3 United Kingdom Duke McKenzie 30 June 1991 2
4 Puerto Rico Rafael del Valle 13 May 1992 2
5 Ghana Alfred Kotey 30 July 1994 2
6 Puerto Rico Daniel Jiménez 21 October 1995 1
7 United Kingdom Robbie Regan 26 April 1996 – 18 July 1997 0
Regan vacated the title due to health problems.[98]
8 Colombia Jorge Eliécer Julio
(def. Oscar Maldonado)
28 July 1997 3
9 United States Johnny Tapia 8 January 2000 – 16 August 2000 1
Tapia vacated the title to fight Paulie Ayala at junior featherweight.[99]
10 Panama Mauricio Martínez
(def. Lester Fuentes)
4 September 2000 1
11 Mexico Cruz Carbajal 15 March 2002 2
12 Thailand Ratanachai Sor Vorapin 7 May 2004 1
13 Mexico Jhonny González 29 October 2005 1
14 Philippines Gerry Peñalosa 11 August 2007 – 25 April 2009 1
Peñalosa was stripped of the title after moving up and challenging WBO junior featherweight champion Juan Manuel López.[100]
15 Mexico Fernando Montiel
(interim champion promoted)
25 April 2009 2
16 Philippines Nonito Donaire 19 February 2011 – 22 October 2011 2
Donaire vacates the title to move up to junior featherweight.[101]
17 Mexico Jorge Arce
(def. Angky Angkotta)
26 November 2011 – 15 August 2012 0
Arce intends to stay at junior featherweight. The title is vacated on WBO's August 2012 rankings.[102]
18 Thailand Pungluang Sor Singyu
(def. A. J. Banal)
20 October 2012 0
19 Namibia Paulus Ambunda 2 March 2013 0
20 Japan Tomoki Kameda 1 August 2013 – 23 April 2015 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.[103] As a result, Kameda relinquished his title.[104]
21 Thailand Pungluang Sor Singyu
(def. Ryo Akaho)
8 August 2015 1
22 Philippines Marlon Tapales 27 July 2016 – 22 April 2017 0
Tapales was stripped of the title after failing to make weight the day before his bout against Shohei Omori.[105]
23 South Africa Zolani Tete
(interim champion promoted)
23 April 2017 3
24 Philippines John Riel Casimero 30 November 2019 – present 2

Junior bantamweight[edit]

No. Name Date Defenses
1 Puerto Rico José Ruíz Matos
(def. Bebis Rojas)
29 April 1989 4
2 Mexico José Quirino 22 February 1992 0
3 Denmark Johnny Bredahl 4 September 1992 – 16 July 1994 3
Bredahl was stripped of the title.[106]
4 United States Johnny Tapia
(def. Henry Martínez)
14 October 1994 – December 1998 13
Tapia vacates the title to move up to bantamweight.
5 Argentina Victor Godoi
(interim champion promoted)
December 1998 0
6 Mexico Diego Morales 7 June 1999 1
7 Nicaragua Adonis Rivas 20 November 1999 2
8 Panama Pedro Alcázar 16 June 2001 1
9 Mexico Fernando Montiel 22 June 2002 1
10 United States Mark Johnson 16 August 2003 1
11 Mexico Iván Hernández 25 September 2004 0
12 Mexico Fernando Montiel (2) 9 April 2005 – 10 February 2009 6
Montiel reportedly was open in fighting Vic Darchinyan for the undisputed championship however,[107]on the following day, Montiel's title was reportedly vacated.[108]
13 Puerto Rico José López
(def. Pramuansak Posuwan)
28 March 2009 0
14 Philippines Marvin Sonsona 4 September 2009 – 20 November 2009 0
Sonsona was stripped of the title after failing to make weight on the day of his bout against Alejandro Hernández.[109]
15 Mexico Jorge Arce
(def. Angky Angkotta)
30 January 2010 – April 2010 0
Arce vacates his title to move up to bantamweight.
16 Argentina Omar Narváez
(def. Everth Briceño)
15 May 2010 11
17 Japan Naoya Inoue 30 December 2014 – 6 March 2018 7
Inoue vacates the title to move up to bantamweight.[110]
18 Philippines Donnie Nietes
(def. Kazuto Ioka)
31 December 2018 – 28 February 2019 0
Nietes vacates the title to pursue a career-defining fight.[111]
19 Japan Kazuto Ioka
(def. Aston Palicte)
19 June 2019 – present 4

Flyweight[edit]

No. Name Date Defenses
1 Colombia Elvis Álvarez
(def. Miguel Mercedes)
3 March 1989 – 1990 0
Álvarez vacates the title due to lack of interest in it.
2 Mexico Isidro Pérez
(def. Angel Rosario)
18 August 1990 2
3 United Kingdom Pat Clinton 18 March 1992 1
4 South Africa Jacob Matlala 15 May 1993 3
5 Mexico Alberto Jiménez 11 February 1995 5
6 Argentina Carlos Gabriel Salazar 13 December 1996 5
7 Mexico Ruben Sánchez León 14 August 1998 1
8 Spain José Antonio López Bueno 23 April 1999 – 1999 1
Bueno vacates the title due to an ankle injury thus preventing him from defending the title.
9 Mexico Isidro García
(def. José López)
18 December 1999 1
10 Mexico Fernando Montiel 15 December 2000 – 22 June 2002 3
Montiel's title was vacated when he stepped on the ring against Pedro Alcázar for his WBO junior bantamweight title.[112]
11 Nicaragua Adonis Rivas
(interim champion promoted)
22 June 2002 0
12 Argentina Omar Narváez 13 July 2002 – 14 May 2010 16
Narváez vacates the title to move up to junior bantamweight.[113]
13 Mexico Julio César Miranda
(def. Richie Mepranum)
12 June 2010 3
14 United States Brian Viloria 16 July 2011 3
15 Mexico Juan Francisco Estrada 6 April 2013 – 14 September 2016 5
Estrada vacates the title to move up to junior bantamweight.[114]
16 China Zou Shiming
(def. Prasitsak Phaprom)
5 November 2016 0
17 Japan Sho Kimura 28 July 2017 2
18 Japan Kosei Tanaka 24 September 2018 – 31 January 2020 3
Tanaka vacates the title to move up to junior bantamweight.[115]
19 Japan Junto Nakatani
(def. Giemel Magramo)
6 November 2020 – present 1

Junior flyweight[edit]

No. Name Date Defenses
1 Puerto Rico José de Jesús
(def. Fernando Martínez)
19 May 1989 – March 1992 3
de Jesús was stripped of the title after failing to defend it in a specific time period.
2 Puerto Rico Josué Camacho
(def. Eddie Vallejo)
31 July 1992 1
3 United States Michael Carbajal 15 July 1994 – 12 November 1994 0
Carbajal is stripped of the title for failing to defend the title.
4 United Kingdom Paul Weir
(def. Paul Oulden)
23 November 1994 1
5 South Africa Jacob Matlala 18 November 1995 – 1997 2
Matlala vacates the title to fight Michael Carbajal rather than defend his title.
6 Mexico Jesús Chong
(def. Eric Griffin)
31 May 1997 0
7 Mexico Melchor Cob Castro 25 August 1997 0
8 Argentina Juan Domingo Córdoba 17 January 1998 1
9 Mexico Jorge Arce 5 December 1998 1
10 United States Michael Carbajal (2) 31 July 1999 – August 1999 0
Carbajal retires.
11 South Africa Masibulele Makepula
(def. Jacob Matlala)
19 February 2000 – 2000 0
Makepula vacates the title to move up to flyweight.
12 Puerto Rico Nelson Dieppa
(def. Andy Tabanas)
14 April 2001 5
13 Mexico Hugo Cázares 30 April 2005 4
14 Puerto Rico Iván Calderón 25 August 2007 6
15 Mexico Giovani Segura 28 August 2010 – 22 April 2011 1
Segura vacates the title to move up to flyweight.[116]
16 Colombia Jesús Géles
(interim champion promoted)
22 April 2011 0
17 Mexico Ramón García Hirales 30 April 2011 0
18 Philippines Donnie Nietes 8 October 2011 – 3 August 2016 9
Nietes vacates the title to move up to flyweight.[117]
19 Japan Kosei Tanaka
(def. Moisés Fuentes)
31 December 2016 – 30 November 2017 2
Tanaka vacates the title to move up to flyweight.[118]
20 Puerto Rico Ángel Acosta
(def. Juan Alejo)
2 December 2017 3
21 Mexico Elwin Soto 21 June 2019 3
22 Puerto Rico Jonathan González 16 October 2021 – present 0

Mini flyweight[edit]

No. Name Date Defenses
1 Dominican Republic Rafael Torres
(def. Yamil Caraballo)
30 August 1989 – 1993 1
Torres vacates the title.
2 United Kingdom Paul Weir
(def. Fernando Martínez)
15 May 1993 – 16 December 1993 1
Weir vacates the title to move up in weight and challenge Josué Camacho for a junior flyweight world title.[119]
3 Puerto Rico Alex Sánchez
(def. Orlando Malone)
22 December 1993 6
4 Mexico Ricardo López 23 August 1997 – August 1997 0
After winning the title, López was stripped of the title after he stated that he would give the championship belt to his father. The WBO president at that time deemed it as a "public resignation".[120]
5 Philippines Eric Jamili
(def. Mickey Cantwell)
19 December 1997 0
6 Colombia Kermin Guardia 30 May 1998 – 2001 3
Guardia vacates the title to move up to junior flyweight.
7 Spain Jorge Mata
(def. Reynaldo Frutos)
29 June 2002 1
8 Nicaragua Eduardo Ray Márquez 28 March 2003 0
9 Puerto Rico Iván Calderón 3 May 2003 – 25 August 2007 11
Calderón's title is vacated when he won the WBO junior flyweight title.
10 Philippines Donnie Nietes
(def. Pornsawan Porpramook)
30 September 2007 – 28 February 2011 4
Nietes vacates the title to move up in weight and challenge Ramón García Hirales for the WBO junior flyweight title.[121]
11 Mexico Raúl García
(interim champion promoted)
28 February 2011 1
12 Mexico Moisés Fuentes 27 August 2011 – 19 April 2013 2
Fuentes vacates the title to move up to junior flyweight.[122]
13 Philippines Merlito Sabillo
(interim champion promoted)
19 April 2013 2
14 Mexico Francisco Rodríguez Jr. 22 March 2014 – 15 December 2014 1
Rodríguez intends to move in weight class. The title is vacated on WBO's December 2014 rankings.[123]
15 Japan Katsunari Takayama
(def. Go Odaira)
31 December 2014 – 3 March 2015 0
Takayama vacates his WBO title to skip his mandatory challenger in favor of a fight with former champion Fahlan Sakkreerin.[124]
16 Japan Kosei Tanaka
(def. Julián Yedras)
30 May 2015 – 7 April 2016 1
Tanaka vacates the title to move up to junior flyweight.[125]
17 Japan Katsunari Takayama (2)
(def. Riku Kano)
20 August 2016 – 3 April 2017 0
Takayama retired from professional boxing in order to concentrate on training for the 2020 Summer Olympics.[126] Interim champion Fukura is later promoted to full champion.[127]
18 Japan Tatsuya Fukuhara
(interim champion promoted)
14 April 2017 0
19 Japan Ryuya Yamanaka 27 August 2017 1
20 Philippines Vic Saludar 13 July 2018 1
21 Puerto Rico Wilfredo Méndez 24 August 2019 2
22 Japan Masataka Taniguchi 14 December 2021 – present 0

See also[edit]

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