List of WBO world champions

The is a list of boxing world champions in the World Boxing Organization.

Minimumweight

Name:	Date:	Location:	Defenses:
Rafael Torres def. Yamil Caraballo	August 30, 1989	Santo Domingo, Dominican Republic	1
Title vacated	1993	Torres' only defense was against Husni Ray on July 31, 1990 in Jakarta,Indonesia.
Paul Weir def. Fernando Martínez	May 15, 1993	Glasgow, Scotland, United Kingdom	1
Title vacated	1993	Weir vacated the title to move up to light flyweight. His only defense was against Lindi Memani on October 25, 1993 in Glasgow, Scotland, United Kingdom.
Alex Sánchez def. Orlando Malone	December 22, 1993	El Condado, San Juan, Puerto Rico	6
Ricardo López	August 23, 1997	New York City, New York, United States	0
Title vacated	1997	López vacated all his titles at minimumweight to move up to light flyweight.
Eric Jamili def. Mickey Cantwell	December 19, 1997	London, England, United Kingdom	0
Kermin Guardia	May 30, 1998	Las Vegas, Nevada, United States	3
Title vacated	2001	Guardia vacated the title to move up to light flyweight. His last defense was against Juan Alfonso Keb Baas on April 6, 2001 in Mérida, Yucatán, Mexico.
Jorge Mata def. Reynaldo Frutos	June 29, 2002	Palma, Majorca, Spain	1
Eduardo Ray Marquez	March 28, 2003	Madrid, Spain	0
Iván Calderón	May 3, 2003	Las Vegas, Nevada, United States	11
Title vacated	2007	Calderón vacated the title to move up to light flyweight. His last defense of the title was on April 28, 2007 against Ronald Barrera in Barranquilla, Colombia.
Donnie Nietes def. Pornsawan Kratingdaenggym	September 30, 2007	Cebu City, Cebu, Philippines	3

Light flyweight

Name:	Date:	Location:	Defenses:
Jose De Jesús def. Fernando Martínez	May 19, 1989	San Juan, Puerto Rico	3
Title vacated	March 1992	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 November 10, 1990 in Jakarta, Indonesia.
Josue Camacho def. Eddie Vallejo	July 31, 1992	San Juan, Puerto Rico	1
Michael Carbajal	July 15, 1994	Phoenix, Arizona, United States	0
Title vacated	1994	Carbajal failed to defend the title he had just won, looking forward instead to have another fight with Humberto González 4 months later.
Paul Weir def. Paul Oulden	November 23, 1994	Irvine, Scotland, United Kingdom	1
Jacob Matlala	November 18, 1995	Glasgow, Scotland, United Kingdom	2
Title vacated	1997	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 February 8, 1997 in Millwall, London.
Jesús Chong def. Eric Griffin	May 31, 1997	Las Vegas, Nevada, United States	0
Melchor Cob Castro	August 25, 1997	Inglewood, California, United States	0
Juan Domingo Córdoba	January 17, 1998	Santiago del Estero, Argentina	1
Jorge Arce	December 5, 1998	Tijuana, Mexico	1
Michael Carbajal (2)	July 31, 1999	Tijuana, Mexico	0
Title vacated	August 1999	Carbajal automatically vacated the title after retiring that same year.
Masibulele Makepula def. Jacob Matlala	February 19, 2000	Brakpan, South Africa	0
Title vacated	2000
Nelson Dieppa def. Andy Tabanas	April 14, 2001	New York City, United States	2
Kermin Guardia – Interim def. John Albert Molina	July 11, 2003	Puerto Colombia, Colombia	0
Nelson Dieppa def. Kermin Guardia for undisputed title	March 20, 2004	Guaynabo, Puerto Rico	2
Hugo Cázares	April 30, 2005	San Juan, Puerto Rico	4
Iván Calderón	August 25, 2007	Guaynabo, Puerto Rico	2

Flyweight

Name:	Date:	Location:	Defenses:
Elvis Álvarez def. Miguel Mercedes	March 3, 1989	Medellín, Colombia	0
Title vacated	March 1990	Alvarez vacated the title due to lack of interest in it.
Isidro Perez def. Angel Rosario	August 18, 1990	Ponce, Puerto Rico	2
Pat Clinton	March 18, 1992	Glasgow, Scotland, United Kingdom	1
Jacob Matlala	May 15, 1993	Glasgow, Scotland, United Kingdom	3
Alberto Jiménez	February 11, 1995	Hammanskraal, South Africa	5
Carlos Gabriel Salazar	December 13, 1996	Buenos Aires, Argentina	5
Ruben Sánchez León	August 14, 1998	Mexicali, Mexico	1
Jose Lopez Bueno	April 23, 1999	Zaragoza, Spain	1
Title vacated	1999
Isidro García def. José López	December 18, 1999	Indio, California, United States	1
Fernando Montiel	December 15, 2000	Ciudad Obregón, Mexico	3
Title vacated	2001–2002
Adonis Rivas def. Jair Jimenez	May 4, 2002	Managua, Nicaragua	0
Omar Andrés Narváez	July 13, 2002	Buenos Aires, Argentina	16
Title vacated	2010
Julio Cesar Miranda	June 12, 2010	Mexico	0

Junior bantamweight

Name:	Date:	Location:	Defenses:
José Ruiz def. Bebis Rojas	April 29, 1989	San Juan, Puerto Rico	4
Jose Quirino	February 22, 1992	Las Vegas, Nevada, United States	0
Johnny Bredahl	September 4, 1992	Copenhagen, Denmark	3
Title vacated	1994	Bredahl's last defense was against Eduardo Nazario on March 25, 1994 in Aakirkeby, Denmark.
Johnny Tapia def. Henry Martínez	October 14, 1994	Albuquerque, New Mexico, United States	13
Title vacated	1998	Tapia's last defense was against Rodolfo Blanco on February 13, 1998 in Albuquerque, New Mexico.
Victor Godoi def. Pedro Morquecho	November 7, 1998	Chubut, Argentina	0
Diego Morales	June 7, 1999	Tijuana, Mexico	1
Adonis Rivas	November 20, 1999	Las Vegas, Nevada, United States	2
Pedro Alcázar	June 16, 2001	Panama City, Panama	1
Fernando Montiel	June 22, 2002	Las Vegas, Nevada, United States	1
Mark Johnson	August 16, 2003	Uncasville, Connecticut, United States	1
Ivan Hernández	September 25, 2004	Memphis, Tennessee, United States	0
Fernando Montiel (2)	April 9, 2005	El Paso, Texas, United States	6
Title vacated	2009	Montiel's's last defense was against Luis Maldonado on May 31, 2008 in Mexico.
José López def. Pramuansak Posuwan	March 28, 2009	Bayamón, Puerto Rico	0
Marvin Sonsona def. José López	September 4, 2009	Rama, Ontario, Canada	0
Title vacated	2009	Sonsona was stripped of the title after failing to make weight (2.6 lbs. over) in his first title defense against Alejandro Hernández (boxer), whom he fought with to a draw.
Jorge Arce def. Angky Angkota	January 30, 2010	Mexico City, Mexico	0
Title vacated	April 24, 2010	Arce had to vacate the title upon his move to bantamweight division.
Omar Andrés Narváez def. Everth Briceño	May 15, 2010	Distrito Federal, Argentina	0

Bantamweight

Name:	Date:	Location:	Defenses:
Israel Contreras def. Maurizio Lupino	February 3, 1989	Caracas, Venezuela	1
Title vacated	1990	Contreras vacated the title in order to challenge Luisito Espinosa for the WBA title. His only defense was against Ray Minus on September 2, 1990 in Nassau, Bahamas.
Gaby Canizales def. Miguel Lora	March 12, 1991	Auburn Hills, Michigan, United States	0
Duke McKenzie	March 12, 1991	London, England, United Kingdom	2
Rafael del Valle	May 13, 1992	London, England, United Kingdom	2
Alfred Kotey	July 30, 1994	London, England, United Kingdom	2
Daniel Jiménez	October 21, 1995	London, England, United Kingdom	1
Robbie Regan	April 26, 1996	Cardiff, Wales, United Kingdom	0
Title vacated	1996	Title vacated when Regan retired.
Jorge Julio Rocha def. Oscar Maldonado	July 28, 1997	Inglewood, California, United States	3
Johnny Tapia	January 8, 2000	Albuquerque, New Mexico, United States	1
Title vacated	2000
Mauricio Martinez def. Lester Fuentes	September 4, 2000	Manchester, England, United Kingdom	1
Cruz Carbajal	March 15, 2002	Veracruz, Mexico	2
Ratanachai Sor Vorapin	May 7, 2004	Bangkok, Thailand	1
Jhonny Gonzalez	October 29, 2005	Tucson, Arizona, United States	1
Gerry Penalosa	August 11, 2007	Sacramento, California, United States	1
Title Stripped due to Penalosa not defending the belt for a year	April 2009
Fernando Montiel def. Diego Oscar Silva	March 28, 2009	Baja California, Mexico	1
Eric Morel Interim Title def. Gerry Penalosa	February 13, 2010	Las Vegas, Nevada, United States
Nonito Donaire def. Fernando Montiel	February 19, 2011	Las Vegas, Nevada, United States

Junior featherweight

Name:	Date:	Location:	Defenses:
Kenny Mitchell def. Julio Gervacio	April 29, 1989	San Juan, Puerto Rico	1
Valerio Nati	December 9, 1989	Teramo, Italy	0
Orlando Fernandez	May 12, 1990	Sassari, Italy	0
Jesse Benavides	May 24, 1991	Corpus Christi, Texas, United States	1
Duke McKenzie	October 15, 1992	London, England, United Kingdom	0
Daniel Jiménez	June 9, 1993	London, England, United Kingdom	4
Marco Antonio Barrera	March 31, 1995	Anaheim, California, United States	8
Junior Jones	November 22, 1996	Tampa, Florida, United States	1
Kennedy McKinney	April 18, 1997	New York City, New York, United States	0
Title vacated	1998
Marco Antonio Barrera (2) def. Richie Wenton	October 31, 1998	Atlantic City, New Jersey, United States	2
Erik Morales	February 19, 2000	Las Vegas, Nevada, United States	0
Title vacated	2000
Marco Antonio Barrera (3) def. Luiz Freitas	June 17, 2000	Mexico City, Mexico	2
Title vacated	April 7, 2001	Title vacated when Barrera wins the vacant IBO Featherweight title, defeating Naseem Hamed in Las Vegas, Nevada. His last defense was against Jesús Salud on December 1, 2000 also in Las Vegas.
Agapito Sanchez def. Jorge Monsalvo	June 23, 2001	Las Vegas, Nevada, United States	1
Title vacated	2002
Joan Guzmán def. Jorge Monsalvo	August 17, 2002	Cardiff, Wales, United Kingdom	2
Title vacated	July 2005	The WBO stripped Guzman of the title due to his not making weight for a defense against Marcos Licona, scheduled for November 6. His last defense was against Fernando Beltran, Jr. on April 22, 2005 in Hidalgo, Texas, United States.
Daniel Ponce de León def. Sod Looknongyangtoy	October 29, 2005	Tucson, Arizona, United States	6
Juan Manuel López	June 7, 2008	Atlantic City, New Jersey, United States	5
Title vacated	January 23, 2010	Juan Manuel López vacated the title to move up to Featherweight.
Wilfredo Vázquez, Jr.	February 27, 2010	Bayamón, Puerto Rico	0

Featherweight

Name:	Date:	Location:	Defenses:
Maurizio Stecca def. Pedro Nolasco	January 28, 1989	Milan, Italy	1
Louie Espinoza	November 11, 1989	Rimini, Italy	0
Jorge Páez	April 7, 1990	Las Vegas, Nevada, United States	1
Title vacated	1990	Paez's only defense was against Troy Dorsey on July 8, 1990 in Las Vegas, Nevada.
Maurizio Stecca (2) def. Armando Juan Reyes	January 26, 1991	Sassari, Italy	2
Colin McMillan	February 16, 1992	London, England, United Kingdom	0
Rubén Darío Palacios	September 26, 1992	London, England, United Kingdom	0
Title vacated	1992	Title vacated when Palacios retired.
Steve Robinson def. John Davison	April 17, 1993	Washington, England, United Kingdom	7
Naseem Hamed	September 30, 1995	Cardiff, Wales, United Kingdom	15
Title vacated	September 30, 2000	Hamed's last defense was against Augie Sanchez on August 19, 2000 in Mashantucket, Connecticut, United States.
Istvan Kovacs def. Antonio Diaz	January 27, 2001	Munich, Germany	0
Pablo Chacón	June 16, 2001	Budapest, Hungary	2
Title vacated	2002	Chacón's last defense was against Victor Polo on January 19, 2002 in London, England, United Kingdom
Scott Harrison def. Victor Santiago	June 8, 2002	Glasgow, Scotland, United Kingdom	2
Manuel Medina	July 12, 2003	Glasgow, Scotland, United Kingdom	0
Scott Harrison (2)	November 29, 2003	Glasgow, Scotland, United Kingdom	6
Title vacated	June 2006	Harrison was stripped of the title after pulling out of a scheduled defense. His last defense was against Nedal Hussein on November 5, 2005 in Glasgow, Scotland, United Kingdom.
Juan Manuel Márquez def. Terdsak Jandaeng	August 5, 2006	Stateline, Nevada, United States	1
Steven Luevano	July 14, 2007	London, United Kingdom	5
Juan Manuel López	January 23, 2010	New York City, USA	2

Junior lightweight

Name:	Date:	Location:	Defenses:
John John Molina def. Juan Laporte	April 29, 1989	San Juan, Puerto Rico	0
Title vacated	1989
Kamel Bou Ali def. Antonio Rivera	December 9, 1989	Teramo, Italy	2
Daniel Londas	March 21, 1992	San Rufo, Italy	0
Jimmi Bredahl	September 4, 1992	Copenhagen, Denmark	1
Oscar De La Hoya	March 5, 1994	Los Angeles, California, United States	1
Title vacated	1994	de la Hoya vacated the title in order to move up to the Lightweight division.
Regilio Tuur def. Eugene Speed	September 24, 1994	Rotterdam, Netherlands	6
Title vacated	1996–1997	Tuur's last defense was against Jose Vida Ramos on September 6, 1996 in Atlantic City, New Jersey, United States.
Barry Jones def. Wilson Palacio	December 19, 1997	London, England, United Kingdom	0
Title vacated	1998	Jones lost his boxing license after a brain scan found an anomaly. The WBO vacated his title before Jones regained his license
Anatoly Alexandrov def. Julien Lorcy	May 16, 1998	Paris, France	1
Acelino Freitas	August 7, 1999	Le Cannet, France	10
Title vacated	2003	Freitas vacated the title to move up to the lightweight division. His last defense was against Jorge Rodrigo Barrios on August 9, 2003 in Miami, Florida.
Diego Corrales def. Joel Casamayor	March 6, 2004	Mashantucket, Connecticut, United States	0
Title vacated	2004	Corrales vacated the title to move up to the lightweight division.
Mike Anchondo def. Pablo Chacón	July 15, 2004	Dallas, Texas, United States	0
Jorge Rodrigo Barrios	April 8, 2005	Miami, Florida, United States	2
Title vacated	September 15, 2006	Barrios was stripped of the title after he was overweight for his scheduled September 16 defense against Joan Guzmán. His last defense was against Janos Nagy on May 20, 2006 in Los Angeles, California, United States
Joan Guzmán def. Jorge Rodrigo Barrios	September 16, 2006	Las Vegas, Nevada, United States	2
Title vacated	May 2008	Guzman vacated the title after deciding to move up to Lightweight.
Alex Arthur interim champ promoted	May 2008	NA	0
Nicky Cook def. Alex Arthur	September 9, 2008	Manchester, England, United Kingdom	0
Roman Martinez	March 14, 2009	Manchester, England, United Kingdom	0
Ricky Burns	September 4, 2010	Glasgow, Scotland, United Kingdom	0

Lightweight

Name:	Date:	Location:	Defenses:
Mauricio Aceves def. Amancio Castro	May 6, 1989	Santa Ana, California, United States	1
Dingaan Thobela	September 22, 1990	Brownsville, Texas, United States	2
Title vacated	1991	Thobela's last defense was against Antonio Rivera on September 14, 1991 in Johannesburg, South Africa.
Giovanni Parisi def. Javier Altamirano	September 25, 1992	Voghera, Italy	2
Title vacated	1993	Parisi's last defense was against Antonio Rivera on September 24, 1993 in Rome, Italy.
Oscar De La Hoya def. Jorge Páez	July 29, 1994	Las Vegas, Nevada, United States	6
Title vacated	1996	de la Hoya's last defense was against Jesse James Leija on December 15, 1995 in New York City, New York, United States.
Artur Grigorian def. Antonio Rivera	April 13, 1996	Hamburg, Germany	17
Acelino Freitas	January 3, 2004	Mashantucket, Connecticut, United States	0
Diego Corrales	August 7, 2004	Mashantucket, Connecticut, United States	1
Title vacated	2006	Corrales' only defense was against José Luis Castillo on May 7, 2005 in Las Vegas, Nevada.
Acelino Freitas (2) def. Zahir Raheem	April 29, 2006	Mashantucket, Connecticut, United States	0
Juan Díaz	April 28, 2007	Mashantucket, Connecticut, United States	1
Nate Campbell	March 8, 2008	Cancún, Mexico	0
Title vacated	February 14, 2009	Campbell was stripped of the title for being unable to make weight for his next fight against Ali Funeka on February 14, 2009 in Sunrise, Florida, United States
Juan Manuel Márquez def. Juan Díaz	February 28, 2009	Houston, Texas, United States	0

Junior welterweight

Name:	Date:	Location:	Defenses:
Héctor Camacho def. Ray Mancini	March 6, 1989	Reno, Nevada, United States	2
Greg Haugen	February 23, 1991	Las Vegas, Nevada, United States	0
Héctor Camacho (2)	May 19, 1991	Reno, Nevada, United States	0
Title vacated	1992
Carlos González def. Jimmy Paul	June 29, 1992	Inglewood, California, United States	3
Zack Padilla	June 7, 1993	Las Vegas, Nevada, United States	4
Title vacated	July 24, 1994	Title vacated when Padilla retired after his final defense against Juan Laporte in Los Angeles, California.
Sammy Fuentes def. Fidel Avendano	February 20, 1995	Inglewood, California, United States	1
Giovanni Parisi	March 9, 1996	Milan, Italy	5
Carlos González (2)	May 29, 1998	Pesaro, Italy	0
Randall Bailey	May 15, 1999	Miami, Florida, United States	2
Ener Julio	July 22, 2000	Miami, Florida, United States	0
Title vacated	June 2001	Title vacated when a routine eye exam reveals that Julio has cataracts.
DeMarcus Corley def. Felix Flores	June 30, 2001	Las Vegas, Nevada, United States	2
Zab Judah	July 12, 2003	Las Vegas, Nevada, United States	1
Title vacated	2004	Judah vacated the title to move up to the Welterweight division.
Miguel Cotto def. Kelson Pinto	September 11, 2004	San Juan, Puerto Rico	6
Title vacated	2006	Cotto vacated the title to move up to Welterweight and challenge for the WBA title His last defense was against Paul Malignaggi on June 10, 2006 in New York City, New York.
Ricardo Torres def. Mike Arnaoutis	November 18, 2006	Las Vegas, Nevada, United States	3
Kendall Holt def. Ricardo Torres	July 5, 2008	Las Vegas, Nevada, United States	1
Timothy Bradley this bout was a title unification match for both WBO and WBC titles	April 4, 2009	Montreal, Quebec, Canada	1

Welterweight

Name:	Date:	Location:	Defenses:
Genaro Leon def. Danny Garcia	May 6, 1989	Santa Ana, California, United States	0
Title vacated	1989
Manning Galloway def. Al Hamza	December 15, 1989	Yabucoa, Puerto Rico	7
Gert Bo Jacobsen	February 12, 1993	Randers, Denmark	0
Title vacated	1993
Eammon Loughran def. Lorenzo Smith	October 16, 1993	Belfast, Northern Ireland	5
José Luis López	April 13, 1996	Liverpool, England, United Kingdom	1
Title vacated	1996–1997	López's only defense was against Luis Ramón Campas on October 6, 1996 in Los Angeles, California, United States.
Mihai Leu def. Santiago Samaniego	February 22, 1997	Hamburg, Germany	1
Title vacated	1997	Title vacated when Leu retired. His only defense was against Michael Carruth on September 20, 1997 in Aachen, Germany.
Ahmed Kotiev def. Leonard Townsend	February 22, 1997	Stuttgart, Germany	4
Daniel Santos	May 6, 2000	Neuss, Germany	2
Title vacated	July 21, 2001	Title vacated when a bout between Santos and Antonio Margarito in Bayamón, Puerto Rico ends in a no-contest in the first round.
Antonio Margarito def. Antonio Díaz	March 16, 2002	Las Vegas, Nevada, United States	3
Kermit Cintrón – Interim def. Teddy Reid	July 17, 2004	Houston, Texas, United States	3
Antonio Margarito def. Kermit Cintrón for undisputed title	April 23, 2005	Las Vegas, Nevada, United States	4
Paul Williams	July 14, 2007	Carson City, California, United States	0
Carlos Quintana	February 9, 2008	Temecula, California, United States	0
Paul Williams (2)	June 7, 2008	Uncasville, Connecticut, United States	0
Title vacated	November 2008	Williams vacated the title to fight for the Jr. Middleweight Title.
Miguel Cotto	February 21, 2009	Madison Square Garden, New York, United States	1
Manny Pacquiao	November 12, 2011	Las Vegas, Nevada, United States	3

Junior middleweight

Name:	Date:	Location:	Defenses:
John David Jackson def. Lupe Aquino	December 8, 1988	Detroit, Michigan, United States	6
Title vacated	1993	Jackson vacated the title to move up to Middleweight. His last defense was against Michele Mastrodonato on December 19, 1992 in San Severo, Italy.
Verno Phillips def. Lupe Aquino	October 30, 1993	Phoenix, Arizona, United States	4
Paul Jones	November 22, 1995	Sheffield, England, United Kingdom	0
Title vacated	February 1996	Jones was stripped of the title.
Ronald "Winky" Wright	May 17, 1996	Monroe, Michigan, United States	3
Harry Simon	August 22, 1998	Temba, South Africa	4
Title vacated	July 2001	Simon vacated the title to move up to Middleweight. His last defense was against Wayne Alexander on February 10, 2001 in Widnes, England, United Kingdom.
Daniel Santos def. Luis "Yori Boy" Campas	March 16, 2002	Las Vegas, Nevada, United States	4
Sergiy Dzindziruk	December 3, 2005	Magdeburg, Germany	4

Middleweight

Name:	Date:	Location:	Defenses:
Doug DeWitt def. Robbie Sims	April 18, 1989	Atlantic City, New Jersey, United States	1
Nigel Benn	April 29, 1990	Atlantic City, New Jersey, United States	1
Chris Eubank	November 18, 1990	Birmingham, England, United Kingdom	3
Title vacated	1991	Eubank vacated the title to move up to Super Middleweight. His last defense was against Michael Watson on June 22, 1991 in London, England, United Kingdom.
Gerald McClellan def. John Mugabi	November 20, 1991	London, England, United Kingdom	0
Title vacated	1991	McClellan vacated the title to move up to Super Middleweight.
Chris Pyatt def. Sumbu Kalambay	May 19, 1993	Leicester, England, United Kingdom	2
Steve Collins	May 11, 1994	Sheffield, England, United Kingdom	0
Title vacated	1994–1995	Collins vacated the title to move up to Super Middleweight.
Lonnie Bradley def. David Mendez	May 19, 1995	Primm, Nevada, United States	6
Title vacated	1997
Otis Grant def. Ryan Rhodes	December 13, 1997	Sheffield, England, United Kingdom	1
Title vacated	1998	Grant vacated the title to move up to Light Heavyweight. His only defense was against Ernesto Rafael Sena on May 12, 1998 in Kanata, Ontario, Canada.
Bert Schenk def. Freeman Barr	January 30, 1999	Cottbus, Germany	1
Title vacated	1999	Schenk's only defense was against Juan Ramon Medina on May 22, 1999 in Budapest, Hungary.
Jason Matthews def. Ryan Rhodes	July 17, 1999	Doncaster, England, United Kingdom	0
Armand Krajnc	November 27, 1999	Lübeck, Germany	2
Harry Simon – Interim def. Hacine Cherifi	July 21, 2001	Bayamón, Puerto Rico	0
Krajnc vacated the title on June 4, 2001, while in a dispute with Universum Box-Promotion, however the WBO gave Krajnc back the title.
Armand Krajnc	November 3, 2001	Lübeck, Germany	0
Harry Simon	April 6, 2002	Copenhagen, Denmark	0
Title vacated	2002	Title vacated when Simon retired.
Hector Javier Velazco def. Andras Galfi	May 10, 2003	Buenos Aires, Argentina	0
Felix Sturm	September 13, 2003	Berlin, Germany	1
Oscar De La Hoya	June 5, 2004	Las Vegas, Nevada, United States	0
Bernard Hopkins	September 18, 2004	Las Vegas, Nevada, United States	1
Jermain Taylor	July 16, 2005	Las Vegas, Nevada, United States	3
Kelly Pavlik	September 29, 2007	Atlantic City, New Jersey, United States	3
Sergio Gabriel Martínez	April 17, 2010	Atlantic City, New Jersey, United States	0
Title Stripped	June 1, 2010

Super middleweight

Name:	Date:	Location:	Defenses:
Thomas Hearns def. James Kinchen	November 4, 1988	Las Vegas, Nevada, United States	2
Title vacated	1990	Hearns' last defense was against Michael Olajide on April 28, 1990 in Atlantic City, New Jersey, United States.
Chris Eubank def. Michael Watson	September 21, 1991	London, England, United Kingdom	14
Steve Collins	March 18, 1995	Millstreet, Ireland	7
Title vacated	October 1997	Collins was stripped of the title when he was unable to defend due to injury. His last defense was against Craig Cummings on July 5, 1997 in Glasgow, Scotland, United Kingdom.
Joe Calzaghe def. Chris Eubank	October 11, 1997	Sheffield, England, United Kingdom	21
Title vacated	June 2008	Calazghe vacated all of his titles when he announced he would retire.
Denis Inkin def. Fulgencio Zuniga	September 27, 2008	Hamburg, Germany	0
Károly Balzsay	January 10, 2009	Magdeburg, Germany	1
Robert Stieglitz	August 22, 2009	Budapest, Hungary	0

Light heavyweight

Name:	Date:	Location:	Defenses:
Michael Moorer def. Ramzi Hassan	December 3, 1988	Brook Park, Ohio, United States	9
Title vacated	1991	Moorer vacated the title in order to move up to Heavyweight.
Leeonzer Barber def. Tom Collins	May 9, 1991	Leeds, England, United Kingdom	4
Dariusz Michalczewski	September 10, 1994	Hamburg, Germany	23
Julio César González	October 10, 2003	Hamburg, Germany	0
Zsolt Erdei	January 17, 2004	Karlsruhe, Germany	11
Nathan Cleverly	May 19, 2011	Juergen Braehmer was stripped from title due to injury.	0

Junior heavyweight

This weight class is designated as Cruiserweight in the IBF, WBA and WBC.

Name:	Date:	Location:	Defenses:
Boone Pultz def. Magne Havnaa	December 3, 1989	Copenhagen, Denmark	0
Magne Havnaa	May 17, 1990	Aars, Denmark	2
Title vacated	1991	Havnaa's last defense was against Tyrone Booze on February 15, 1991 in Randers, Denmark.
Tyrone Booze def. Derek Angol	July 25, 1992	Manchester, England, United Kingdom	1
Markus Bott	February 13, 1993	Hamburg, Germany	0
Nestor Giovannini	June 26, 1993	Hamburg, Germany	1
Dariusz Michalczewski	December 17, 1994	Hamburg, Germany	0
Title vacated	1995	Michalczewski vacated the title in favor of the WBO Light Heavyweight title, which he already held.
Ralf Rocchigiani def. Carl Thompson	June 10, 1995	Manchester, England, United Kingdom	6
Carl Thompson	October 4, 1997	Hanover, Germany	2
Johnny Nelson	March 27, 1999	Derby, England, United Kingdom	13
Title vacated	2006	Title vacated when Nelson retired.
Enzo Maccarinelli Interim champ promoted	July 8, 2006	Cardiff, Wales, United Kingdom	4
David Haye	March 8, 2008	London, England, United Kingdom	0
Title vacated	2008	Title vacated when Haye decided to move up to Heavyweight.
Olaf Afolabi def. Enzo Maccarinelli	March 14, 2009	London, England, United Kingdom	0
Marco Huck	December 5, 2009	Ludwigsburg, Germany	2

Heavyweight

Name:	Date:	Location:	Defenses:
Francesco Damiani def. Johnny DuPlooy	May 6, 1989	Syracuse, Italy	1
Ray Mercer	January 11, 1991	Atlantic City, New Jersey, United States	1
Title vacated	1991	Mercer's only defense was against Tommy Morrison on October 18, 1991 in Atlantic City, New Jersey. He gave up the title shortly after.
Michael Moorer def. Bert Cooper	May 15, 1992	Atlantic City, New Jersey, United States	0
Title vacated	February 2, 1993
Tommy Morrison def. George Foreman	June 7, 1993	Las Vegas, Nevada, United States	1
Michael Bentt	October 29, 1993	Tulsa, Oklahoma, United States	0
Herbie Hide	March 19, 1994	London, England, United Kingdom	0
Riddick Bowe	March 11, 1995	Las Vegas, Nevada, United States	1
Title vacated	1995	Bowe's only defense was against Jorge Luis Gonzalez on June 17, 1995 in Las Vegas, Nevada.
Henry Akinwande def. Jeremy Williams	June 29, 1996	Indio, California, United States	2
Title vacated	February 17, 1997	Akinwande vacated the title in order to challenge for the WBC title. His last defense was against Scott Welch on January 11, 1997 in Nashville, Tennessee.
Herbie Hide (2) def. Tony Tucker	June 28, 1997	Norwich, England, United Kingdom	2
Vitali Klitschko	June 26, 1999	London, England, United Kingdom	2
Chris Byrd	April 1, 2000	Berlin, Germany	0
Wladimir Klitschko	October 14, 2000	Cologne, Germany	5
Corrie Sanders	March 8, 2003	Hanover, Germany	0
Title vacated	2003
Lamon Brewster def. Wladimir Klitschko	April 10, 2004	Las Vegas, Nevada, United States	3
Serguei Lyakhovich	April 1, 2006	Cleveland, Ohio, United States	0
Shannon Briggs	November 4, 2006	Phoenix, Arizona, United States	0
Sultan Ibragimov	June 2, 2007	Atlantic City, New Jersey, United States	1
Wladimir Klitschko (2)	February 23, 2008	New York, United States	6

See also

• World Boxing Organization
• List of WBA world champions
• List of WBC world champions
• List of IBF world champions
• List of IBO world champions