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List of IBO world champions

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This is a list of IBO world champions, showing every world champion certificated by the International Boxing Organization (IBO) since 1993.

r – Champion relinquished title
s – Champion stripped of title

Heavyweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Pinklon Thomas	Nov 14, 1992 – Jan 29, 1993s	0
2	USA Lionel Butler	Feb 23, 1993 – Mar 1993s	0
3	USA Danell Nicholson	Aug 4, 1994 – Oct 1994r	0
4	NZL Jimmy Thunder	Oct 29, 1994 – Jul 16, 1995s	2
5	DNK Brian Nielsen	Jan 12, 1996 – Jun 18, 1999s	5
6	GBR Lennox Lewis	Nov 13, 1999 – Apr 22, 2001	3
7	USA Hasim Rahman	Apr 22, 2001 – Nov 17, 2001	0
8	GBR Lennox Lewis (2)	Nov 17, 2001 – Feb 6, 2004r	2
9	UKR Wladimir Klitschko	Apr 22, 2006 – Nov 28, 2015	18
10	GBR Tyson Fury	Nov 28, 2015 – Oct 12, 2016r	0
11	GBR Anthony Joshua	Apr 29, 2017 – Jun 1, 2019	3
12	USA Andy Ruiz Jr.	Jun 1, 2019 – Dec 7, 2019	0
13	GBR Anthony Joshua (2)	Dec 7, 2019 – Sep 25, 2021	1
14	UKR Oleksandr Usyk	Sep 25, 2021 – present	5

Cruiserweight

Source:

No.	Name	Duration of reign	Defenses
1	NGA David Izeqwire	Dec 28, 1993 – Nov 5, 1994	1
2	USA Adolpho Washington	Nov 5, 1994 – Mar 17, 1995s	0
3	GHA Ted Cofie	Nov 3, 1995 – 1997r	0
4	USA Booker T. Word	Apr 18, 1997 – 1997r	0
5	USA James Toney	Jun 14, 1997 – 1998r	0
6	USA Robert Daniels	May 5, 1998 – 1999r	0
7	USA Thomas Hearns	Apr 10, 1999 – Apr 8, 2000	0
8	JAM Uriah Grant	Apr 8, 2000 – Feb 3, 2001	0
9	GBR Carl Thompson	Feb 3, 2001 – Nov 26, 2001	0
10	USA Ezra Sellers	Nov 26, 2001 – Apr 6, 2002s	0
11	ZAF Sebastiaan Rothmann	Oct 26, 2002 – Feb 6, 2004	1
12	GBR Carl Thompson (2)	url=https://www.eurosport.com/boxing/british-news/2005/sky-sports-snub-sees-t._sto851085/story.shtml	title=Sky Sports snub sees three Brits get stripped of titles due to inactivity	website=Eurosport	publisher=SecondsOut.com	date=March 16, 2006	access-date=April 14, 2018}}	1
13	POL Tomasz Adamek	Jun 9, 2007 – 2008r	0
14	USA Johnathon Banks	Jul 12, 2008 – Feb 27, 2009s	0
15	AUS Danny Green	Aug 15, 2009 – Jul 20, 2011	4
16	USA Antonio Tarver	Jul 20, 2011 – Jul 2012s	1
17	AUS Danny Green (2)	Nov 21, 2012 – 2013r	0
18	GBR Ola Afolabi	Nov 2, 2013 – 2015r	0
19	RUS Rakhim Chakhkiev	May 22, 2015 – Nov 4, 2015	0
20	GBR Ola Afolabi (2)	Nov 4, 2015 – Feb 27, 2016	0
21	DEU Marco Huck	Feb 27, 2016 – Apr 1, 2017s	1
22	ZAF Kevin Lerena	Sep 9, 2017 – Nov 1, 2021s	6
23	UK Jack Massey	Nov 27, 2021 – November 1, 2022s	1
24	BEL Yves Ngabu	Sep 09, 2023 – October 1,2025s	1
25	ALB Juergen Uldedaj	Oct 25, 2025 – present	0

Light heavyweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Lenny LaPaglia	Aug 20, 1993 – 1993r	0
2	MWI Drake Thadzi	May 14, 1997 – Dec 12, 1998r	1
3	USA Roy Jones Jr.	Nov 18, 1999 – May 15, 2004	5
4	USA Antonio Tarver	May 15, 2004 – Dec 18, 2004	0
5	JAM Glen Johnson	Dec 18, 2004 – Jun 18, 2005	0
6	USA Antonio Tarver (2)	Jun 18, 2005 – Jun 10, 2006	1
7	USA Bernard Hopkins	Jun 10, 2006 – 2007r	0
8	USA Antonio Tarver (3)	Jun 9, 2007 – Oct 11, 2008	2
9	USA Chad Dawson	Oct 11, 2008 – Aug 14, 2010	2
10	CAN Jean Pascal	Aug 14, 2010 – May 21, 2011	1
11	POL Andrzej Fonfara	Nov 16, 2012 – 2013s	0
12	AUS Blake Caparello	Oct 17, 2013 – 2014s	0
13	ZAF Thomas Oosthuizen	Mar 14, 2015 – Jun 5, 2015s	0
14	RUS Umar Salamov	May 21, 2016 – May 17, 2017r	0
15	RUS Igor Mikhalkin	May 19, 2017 – Mar 14, 2018r	1
16	GER Karo Murat	Mar 24, 2018 – Dec 15, 2018	0
17	SWE Sven Fornling	Dec 15, 2018 – Nov 16, 2019	0
18	GER Dominic Boesel	Nov 16, 2019 – Oct 10, 2020	0
19	GER Robin Krasniqi	Oct 10, 2020 – Oct 09, 2021	0
20	GER Dominic Boesel (2)	Oct 09, 2021 – May 14, 2022s	0
21	IRL Padraig McCrory	Oct 22, 2022 – -	0
22	GBR Lyndon Arthur	Sep 01, 2023 – Dec 23, 2023	0
23	RUS Dmitry Bivol	Dec 23, 2023 – Oct 12, 2024	1
24	RUS Artur Beterbiev	Oct 12, 2024 – Feb 22, 2025	0
25	RUS Dmitry Bivol (2)	Feb 22, 2025 – present	0

Super middleweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Willie Ball	Jul 17, 1992 – Oct 9, 1992	0
2	CAN Todd Nadon	Oct 9, 1992 – 1993r	0
3	USA Vinny Pazienza	Dec 28, 1993 – 1994r	0
4	AUS Rick Thornberry	Apr 21, 1995 – 1996s	0
5	USA Karl Willis	Oct 13, 1996 – 1996s	0
6	USA Eddie White	Nov 27, 1996 – 1997s	0
7	DNK Mads Larsen	May 2, 1997 – 1999r	4
8	USA Dana Rosenblatt	Nov 5, 1999 – 2000r	0
9	GBR Adrian Dodson	Mar 3, 2001 – Apr 7, 2001	0
10	ARG Ramon Arturo Brítez	Apr 7, 2001 – Dec 10, 2001	0
11	GBR Brian Magee	Dec 10, 2001 – Jun 26, 2004	7
12	GBR Robin Reid	Jun 26, 2004 – Aug 6, 2005	0
13	USA Jeff Lacy	Aug 6, 2005 – Mar 4, 2006s	1
14	COL Fulgencio Zúñiga	Sep 1, 2007 – 2008r	0
15	AUS Sakio Bika	Nov 13, 2008 – 2010s	0
16	MWI Isaac Chilemba	Jun 19, 2010 – 2011s	1
17	ZAF Thomas Oosthuizen	Mar 26, 2011 – 2014s	7
18	USA Donovan George	Aug 23, 2014 – 2014s	0
19	AUS Zac Dunn	Jun 27, 2015 – 2016s	0
20	AUS Renold Quinlan	Oct 14, 2016 – Feb 4, 2017	0
21	GBR Chris Eubank Jr.	Feb 4, 2017 – Feb 17, 2018s	2
22	GBR Chris Eubank Jr.(2)	Feb 23, 2019 – Dec 17, 2019r	0
23	ECU Carlos Góngora	Dec 18, 2020 – Dec 18, 2021r	1
24	UK Lerrone Richards	Dec 18, 2021 – 2022s	0
25	CUB Osleys Iglesias	Dec 9, 2022 – Present	4

Middleweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Glenwood Brown	Aug 25, 1995 – 1997r	0
2	BHS Freeman Barr	Sep 20, 1997 – 1998r	1
3	ZAF Mpush Makambi	Sep 8, 1998 – Sep 30, 2000	3
4	NLD Raymond Joval	Sep 30, 2000 – 2004s	4
5	NLD Raymond Joval (2)	Jun 3, 2005 – 2006r	1
6	AUS Daniel Geale	Dec 14, 2007 – May 27, 2009	1
7	AUS Anthony Mundine	May 27, 2009 – 2009r	0
8	USA Peter Manfredo Jr.	May 22, 2010 – 2011s	0
9	GEO Avtandil Khurtsidze	Mar 13, 2011 – 2011s	1
10	KAZ Gennady Golovkin	Dec 9, 2011 – Sep 15, 2018s	17
11	KAZ Gennady Golovkin (2)	Oct 5, 2019 – Jun 14, 2023r	2
12	GBR Chris Eubank Jr.	Oct, 12 2024 – present	0

Super welterweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Lonnie Beasley	Apr 10, 1993 – 1994r	0
2	AUS Lester Ellis	Jul 17, 1995 – 1995s	0
3	USA Patrick Goossen	Jun 26, 1996 – 1996r	0
4	CAN Manny Sobral	Dec 12, 1996 – 1997r	1
5	GBR Adrian Stone	Apr 15, 2000 – 2001r	3
6	GBR Richard Williams	Dec 1, 2002 – Jun 21, 2003	3
7	ARG Sergio Martínez	Jun 21, 2003 – 2004r	2
8	HUN Mihály Kótai	Jun 4, 2005 – Mar 3, 2006	1
9	GBR Steve Conway	Mar 3, 2006 – Jun 3, 2006	0
10	HUN Attila Kovács	Jun 3, 2006 – 2008s	1
11	RUS Zaurbek Baysangurov	Dec 4, 2010 – 2012s	1
12	RUS Zaurbek Baysangurov (2)	Apr 12, 2014 – 2015s	0
13	CUB Erislandy Lara	Jun 12, 2015 – Apr 7, 2018	4
14	USA Jarrett Hurd	Apr 7, 2018 – May 11, 2019	1
15	USA Julian Williams	May 11, 2019 – Jan 18, 2020	0
16	DOM Jeison Rosario	Jan 18, 2020 – Apr 1, 2020r	0
17	US Erislandy Lara (2)	Aug 29, 2020 – Sep 1, 2021r	0
18	GBR Sam Eggington	Jun 25, 2022 – Oct 8 2022	0
19	IRE Dennis Hogan	Oct 8, 2022 – May 20, 2023	0
20	UK JJ Metcalf	May 20, 2023 – 2024	0
21	ANG Uisma Lima	Dec 12, 2024 – present	0

Welterweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Kenny Gould	Jan 8, 1993 – 1993r	0
2	USA Johnny Bizzarro	Aug 18, 1993 – Aug 4, 1994	1
3	USA Roger Mayweather	Aug 4, 1994 – 1995r	1
4	USA Kip Diggs	Jun 30, 1995 – 1995r	0
5	GBR Kevin Lueshing	Jul 17, 1996 – Jan 11, 1997s	0
6	USA José Antonio Rivera	Apr 25, 1997 – 1998r	0
7	ZAF Dingaan Thobela	Mar 6, 1999 – 1999r	0
8	ZAF Peter Malinga	Oct 22, 1999 – 2000r	0
9	USA Willy Wise	Dec 2, 2000 – Jun 11, 2001	0
10	GBR Jawaid Khaliq	Jun 11, 2001 – Feb 2006s	7
11	USA Floyd Mayweather Jr.	Apr 8, 2006 – 2007r	1
12	ZAF Isaac Hlatshwayo	May 12, 2007 – 2008r	2
13	AUS Lovemore Ndou	Jul 11, 2009 – 2010s	2
14	ZAF Chris van Heerden	Sep 24, 2011 – 2014s	2
15	ZAF Ali Funeka	Nov 15, 2014 – Jul 24, 2015	0
16	ZAF Tsiko Mulovhedzi	Jul 24, 2015 – 2017s	1
17	ZAF Thulani Mbenge	Jun 25, 2018 – Jul 6, 2019	1
18	GER Sebastian Formella	Jul 6, 2019 – Aug 22, 2020s	1
19	KAZ Daniyar Yeleussinov	Dec 18, 2021 – Dec 27, 2022s	0
20	RSA Tulani Mbenge	Oct 19, 2024 - Present	0

Super lightweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Mike Evgen	Apr 9, 1992 – 1992r	0
2	USA Mike Johnson	Feb 19, 1993 – 1994r	1
3	USA Roger Mayweather	May 28, 1994 – 1994r	0
4	AUS Lester Ellis	Dec 3, 1994 – 1995r	0
5	MEX Mario Martínez	Jul 29, 1995 – 1995r	0
6	AUS Darrell Hiles	Sep 23, 1995 – 1995r	0
7	USA Verdell Smith	Jan 18, 1996 – 1996r	0
8	ISR Johar Abu Lashin	Feb 28, 1997 – 1997r	0
9	USA Israel Cardona	Apr 25, 1997 – 1997r	0
10	COL Ener Julio	Sep 12, 1998 – 1998r	1
11	COL Newton Villarreal	Feb 5, 2000 – Apr 7, 2001	2
12	GBR Billy Schwer	Apr 7, 2001 – Jul 14, 2001	0
13	ARG Pablo Daniel Sarmiento	Jul 14, 2001 – May 8, 2004	3
14	GBR Colin Lynes	May 8, 2004 – 2005r	1
15	USA Stevie Johnston	Jan 27, 2006 – 2006r	0
16	GBR Ricky Hatton	Jan 20, 2007 – May 2, 2009	3
17	PHL Manny Pacquiao	May 2, 2009 – 2010s	0
18	ZAF Kaizer Mabuza	Mar 3, 2012 – Jun 20, 2012	0
19	RUS Khabib Allakhverdiev	Jun 20, 2012 – Apr 12, 2014	2
20	RUS Eduard Troyanovsky	Apr 10, 2015 – Dec 3, 2016	3
21	NAM Julius Indongo	Dec 3, 2016 – Aug 7, 2017s	1
22	FRA Mohamed Mimoune	Jan 20, 2018 – Apr 27, 2019s	1
23	ARG Jeremias Ponce	Sep 14, 2019 – May 25, 2021	0
24	KAZ Zhankosh Turarov	March 21, 2023 – 2024	1
25	GBR Adam Azim	February 01, 2025 – present	1

Lightweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Anthony Boyle	Dec 28, 1993 – 1994r	0
2	PHL Amado Cabato	Dec 11, 1994 – Mar 10, 1995	0
3	AUS Lester Ellis	Mar 10, 1995 – 1995r	0
4	CAN Billy Irwin	Jun 8, 1995 – 1995r	0
5	USA Leavander Johnson	Jul 29, 1995 – 1996r	0
6	CAN Tony Pep	Mar 7, 1996 – 1997r	1
7	GBR Michael Ayers	Mar 12, 1999 – Dec 26, 2001r	6
8	GBR Jason Cook	Nov 8, 2003 – Nov 5, 2004	1
9	ARG Aldo Nazareno Ríos	Nov 5, 2004 – 2005r	0
10	ZAF Isaac Hlatshwayo	Aug 31, 2005 – 2006r	2
11	USA Juan Díaz	Sep 6, 2008 – Feb 28, 2009s	0
12	ZAF Mlungisi Dlamini	Oct 31, 2009 – Jan 29, 2010 (died in a vehicular accident)	0
13	AUS Leonardo Zappavigna	Mar 6, 2010 – 2010s	0
14	ITA Emiliano Marsili	Jan 20, 2012 – 2012s	0
15	IDN Daud Yordan	Jul 6, 2013 – 2014s	1
16	ZAF Xolisani Ndongeni	Nov 28, 2015 – 2016s	0
17	GHA Emmanuel Tagoe	Dec 2, 2016 – Jun 13, 2018s	1
18	MEX Jovanni Straffon	May 1, 2021 – Sep 4, 2021	0
19	UK Maxi Hughes	Sep 4, 2021 – Jul 22, 2023	2
20	AUS George Kambosos Jr	Jul 22, 2023 – May 12, 2024s	0

Super featherweight

Source:

No.	Name	Duration of reign	Defenses
1	USA John Roby	Apr 3, 1993 – Apr 21, 1994	0
2	USA Jeff Mayweather	Apr 21, 1994 – Aug 25, 1995	2
3	USA Israel Cardona	Aug 25, 1995 – 1995r	0
4	DNK Jimmi Bredahl	Mar 29, 1996 – 1996r	0
5	USA Israel Cardona (2)	Apr 12, 1996 – 1996r	0
6	USA Troy Dorsey	Oct 18, 1996 – 1997r	0
7	GBR Charles Shepherd	Jul 31, 1999 – Feb 26, 2000	0
8	DZA Affif Djelti	Feb 26, 2000 – 2002r	3
9	ZAF Cassius Baloyi	Apr 17, 2002 – Jul 29, 2006	5
10	AUS Gairy St Clair	Jul 29, 2006 – Nov 4, 2006s	0
11	ZAF Cassius Baloyi (2)	Feb 3, 2007 – 2007r	0
12	AUS Billy Dib	Jul 30, 2008 – 2008s	0
13	ZAF Zolani Marali	Apr 2, 2009 – Sep 12, 2009	0
14	KOR Kim Ji-hoon	Sep 12, 2009 – 2010r	0
15	AUS Will Tomlinson	Nov 30, 2011 – 2014s	3
16	PRI José Pedraza	Mar 22, 2014 – 2014s	0
17	AUS Jack Asis	Apr 11, 2015 – Aug 5, 2016	0
18	ZAF Malcolm Klassen	Aug 5, 2016 – Aug 5, 2017s	0
19	TJK Shavkat Rakhimov	Sep 9, 2017 – Oct 1, 2019r	3
20	ITA Michael Magnesi	Nov 27, 2020 – Sep 24, 2022	1
21	IRE Anthony Cacace	Sep 24, 2022 – present	4

Featherweight

Source:

No.	Name	Duration of reign	Defenses
1	USA Derrick Gainer	Nov 30, 1993 – 1994r	0
2	USA Radford Beasley	Sep 26, 1997 – 1998r	0
3	USA Junior Jones	Apr 10, 1999 – 1999r	0
4	MEX Marco Antonio Barrera	Apr 7, 2001 – 2002r	0
5	GBR Naseem Hamed	May 18, 2002 – 2002r	0
6	GBR Michael Brodie	Jun 21, 2003 – 2003r	0
7	ZAF Vuyani Bungu	Feb 7, 2004 – Jun 25, 2005	0
8	ZAF Thomas Mashaba	Jun 25, 2005 – Mar 7, 2008	4
9	MEX Cristóbal Cruz	Mar 7, 2008 – 2008r	0
10	MEX Fernando Beltrán Jr.	Aug 22, 2008 – 2009r	0
11	AUS Jackson Asiku	Nov 6, 2009 – Sep 15, 2010	0
12	MEX Jhonny González	Sep 15, 2010 – 2011s	0
13	IDN Daud Yordan	May 5, 2012 – Apr 14, 2013	1
14	ZAF Simpiwe Vetyeka	Apr 14, 2013 – 2014s	1
15	ZAF Lusanda Komanisi	Jul 18, 2014 – 2016s	2
16	DOM Claudio Marrero	Apr 29, 2017 – Sep 15, 2017s	0
17	MGL Tugstsogt Nyambayar	Jan 26, 2019 – Feb 8, 2020r	0
18	GBR Jazza Dickens	Oct 15, 2022 – Jul 22, 2023	0
19	ARG Hector Andres Sosa	Jul 22, 2023 – 2024	1
20	CUB Dayan Gonzalez	Dec 06, 2024 – Present	0

Super bantamweight

Source:

No.	Name	Duration of reign	Defenses
1	GBR John Lowey	Apr 20, 1995 – 1995r	0
2	UKR Serhiy Divakov	May 21, 1996 – 1997r	0
3	GBR Patrick Mullings	Mar 28, 1998 – Aug 8, 1998	0
4	ZAF Simon Ramoni	Aug 8, 1998 – 2001r	3
5	USA Paulie Ayala	Aug 4, 2001 – 2002r	1
6	ZAF Zolani Marali	Jul 11, 2003 – May 22, 2004	0
7	ZAF Thomas Mashaba	May 22, 2004 – 2005r	0
8	ZAF Takalani Ndlovu	Nov 4, 2005 – Jul 14, 2007s	3
9	USA Mike Oliver	Nov 8, 2007 – 2008r	0
10	ZAF Tshifhiwa Munyai	Mar 26, 2011 – 2012r	0
11	RUS Alexander Bakhtin	Sep 18, 2012 – Apr 20, 2013r	0
12	ZAF Thabo Sonjica	Jul 6, 2013 – Aug 8, 2014s	1
13	NAM Paulus Ambunda	Aug 1, 2015 – Jun 11, 2016	1
14	MEX Moises Flores	Jun 11, 2016 – Jun 17, 2017s	0
15	NAM Paulus Ambunda	Sep 21, 2018 – May 11, 2019	0
16	USA Stephen Fulton	May 11, 2019 – Jan 25, 2020r	0
17	RSA Ludumo Lamati	Jun 19, 2021 – May 24, 2022r	0
18	MEX Eric Robles Ayala	Jul 21, 2023 – 2024r	0
19	GBR Liam Davies	Mar 16, 2024 – Nov 2, 2024	0
20	GBR Shabaz Masoud	Nov 2, 2024 – present	0

Bantamweight

Source:

No.	Name	Duration of reign	Defenses
1	DNK Johnny Bredahl	Feb 16, 1996 – Jun 5, 1998r	7
2	GBR Noel Wilders	Mar 20, 2000 – 2001r	1
3	COL José Sanjuanelo	Jul 14, 2001 – Mar 2, 2002	1
4	ZAF Silence Mabuza	Mar 2, 2002 – Nov 5, 2005	6
5	MEX Rafael Márquez	Nov 5, 2005 – 2006r	1
6	ZAF Silence Mabuza (2)	May 12, 2007 – 2009r	2
7	ZAF Simpiwe Vetyeka	Jul 11, 2009 – 2010r	0
8	ARM Vic Darchinyan	May 20, 2010 – Dec 11, 2010s	0
9	ARM Vic Darchinyan (2)	Apr 23, 2011 – Dec 3, 2011s	1
10	GHA Joseph Agbeko	Mar 22, 2013 – 2013s	0
11	DOM Juan Carlos Payano	Aug 2, 2015 – Jun 18, 2016	0
12	USA Rau'shee Warren	Jun 18, 2016 – Feb 10, 2017s	0
13	PHI Michael Dasmariñas	Apr 20, 2018 – 2019s	0
14	VEN Michell Banquez	Jul 12, 2019 – 2021s	0
15	GBR Prince Patel	Dec 19, 2023 – April 01 2024r	0

Super flyweight

Source:

No.	Name	Duration of reign	Defenses
1	PRI Ángel Almena	Jul 29, 1995 – 1995r	0
2	COL Ilido Julio	Sep 19, 1998 – Jan 8, 1999	0
3	VEN Edison Torres	Jan 8, 1999 – Apr 3, 1999	0
4	COL Mauricio Pastrana	Apr 3, 1999 – 1999r	0
5	ZAF Lunga Ntontela	Dec 13, 2002 – 2003r	0
6	GBR Jason Booth	Sep 20, 2003 – Dec 17, 2004	1
7	GBR Damaen Kelly	Dec 17, 2004 – February 2006s	0
8	TZA Mbwana Matumla	Nov 4, 2006 – 2007r	0
9	ARM Vic Darchinyan	Oct 20, 2007 – 2008r	0
10	ZAF Zolile Mbityi	May 31, 2008 – 2009r	0
11	ZAF Gideon Buthelezi	Nov 10, 2012 – Jun 15, 2013	0
12	PHL Edrin Dapudong	Jun 15, 2013 – Jul 18, 2014	0
13	ZAF Lwandile Sityatha	Jul 18, 2014 – 2015r	2
14	ZAF Gideon Buthelezi (2)	Dec 18, 2015 – Nov 1, 2021s	3
15	RSA Ricardo Malajika	Sept 2, 2023 – present	3

Flyweight

Source:

No.	Name	Duration of reign	Defenses
1	CAN Scotty Olson	Dec 9, 1994 – 1998r	5
2	ZAF Zolile Mbityi	Oct 22, 1999 – Sep 30, 2000	1
3	GBR Damaen Kelly	Sep 30, 2000 – Nov 21, 2001s	1
4	ZAF Masibulele Makepula	Jan 26, 2002 – Sep 14, 2002	0
5	ZAF Mzukisi Sikali	Sep 14, 2002 – Mar 27, 2005	2
6	ARM Vic Darchinyan	Mar 27, 2005 – Jul 7, 2007	5
7	PHL Nonito Donaire	Jul 7, 2007 – 2009r	3
8	PRI César Seda	Sep 18, 2009 – 2010s	0
9	ZAF Moruti Mthalane	Mar 15, 2014 – 2017s	3
10	MEX Maximino Flores	Aug 25, 2019 – 2022	0
11	PHI Dave Apolinario	July 29, 2022 – 2023	0
12	RSA Jackson Chauke	Jan 27, 2024 – Mar 1, 2025	0
13	RSA Ricardo Malajika	Mar 1, 2025 – present	0

Light flyweight

Source:

No.	Name	Duration of reign	Defenses
1	COL José Sanjuanelo	Nov 7, 1998 – Aug 26, 2000	0
2	COL José García Bernal	Aug 26, 2000 – Apr 17, 2002	1
3	ZAF Monelisi Mhikiza Myekeni	Apr 17, 2002 – 2004s	1
4	ZAF Hekkie Budler	Feb 27, 2010 – Jan 27, 2011	1
5	ZAF Gideon Buthelezi	Jan 27, 2012 – Sep 24, 2011s	0
6	PHL Rey Loreto	Feb 1, 2014 – 2016s	1
7	ZAF Hekkie Budler (2)	Feb 4, 2017 – Sep 16, 2017s	0
8	INA Tibo Monabesa	Jul 7, 2019 – Mar 1, 2019r	0
9	RSA Mpumelelo Tshabalala	Sep 14, 2024 – present	0

Minimumweight

Source:

No.	Name	Duration of reign	Defenses
1	PHL Noel Tuñacao	Mar 8, 2003 – Dec 16, 2003r	0
2	ZAF Nkosinathi Joyi	Nov 4, 2006 – Jun 2009s	3
3	ZAF Gideon Buthelezi	Jun 19, 2010 – Jan 27, 2011r	0
4	ZAF Hekkie Budler	Sep 24, 2011 – Mar 19, 2016s	8
5	ZAF Simphiwe Khonco	Jun 11, 2016 – Oct 1, 2019r	4
6	ZAF Nkosinathi Joyi (2)	Dec 16, 2019 – May 20, 2021s	0
7	ZAF Ayanda Ndulani	May 21, 2021 – May 19, 2023r	1

References

"IBO Heavyweight Champion - BoxRec".
"IBO Cruiserweight Champion - BoxRec".
(March 16, 2006). "Sky Sports snub sees three Brits get stripped of titles due to inactivity". SecondsOut.com.
"IBO Light Heavyweight Champion - BoxRec".
(19 November 1999). "Jones Adds Ibo Belt Without Even Fighting". Toledo Blade.
"IBO Super Middleweight Champion - BoxRec".
"BoxRec: Login".
"BoxRec: Login".
"BoxRec: Login".
"IBO Middleweight Champion - BoxRec".
(December 2017). "IBO Junior Middleweight Champion - BoxRec}}{{dead link".
"IBO Welterweight Champion - BoxRec".
(December 2017). "IBO Junior Welterweight Champion - BoxRec}}{{dead link".
"IBO Lightweight Champion - BoxRec".
"IBO Super Featherweight Champion - BoxRec".
"IBO Featherweight Champion - BoxRec".
"IBO Super Bantamweight Champion - BoxRec".
"IBO Bantamweight Champion - BoxRec".
"IBO Super Flyweight Champion - BoxRec".
"IBO Flyweight Champion - BoxRec".
"IBO Light Flyweight Champion - BoxRec".
"IBO Minimumweight Champion - BoxRec".

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