List of ONE Championship champions

This is a list of ONE Championship champions in each weight division of each sport.^[1]

Current champions

Men

Division	Champion	Since	Ref.	Defenses
Mixed martial arts
Heavyweight 265 lb (120.2 kg)	Anatoly Malykhin	June 23, 2023	^[2]	0
Light Heavyweight 225 lb (102.1 kg)		December 3, 2022	^[3]	0
Middleweight 205 lb (93.0 kg)	Reinier de Ridder	October 30, 2020	^[4]	2
Welterweight 185 lb (83.9 kg)	Christian Lee	November 19, 2022	^[5]	0
Lightweight 170 lb (77.1 kg)		August 26, 2022	^[6]	0
Featherweight 155 lb (70.3 kg)	Tang Kai	August 26, 2022	^[7]	0
	Thanh Le (interim)	October 7, 2023	^[8]	0
Bantamweight 145 lb (65.8 kg)	Fabrício Andrade	February 25, 2023	^[9]	0
Flyweight 135 lb (61.2 kg)	Demetrious Johnson	August 27, 2022	^[10]	1
Strawweight 125 lb (56.7 kg)	Jarred Brooks	December 3, 2022	^[11]	0
Kickboxing
Light Heavyweight 225 lb (102.1 kg)	Roman Kryklia	November 16, 2019	^[12]	2
Lightweight 170 lb (77.1 kg)	Regian Eersel	May 17, 2019	^[13]	4
Featherweight 155 lb (70.3 kg)	Chingiz Allazov	January 14, 2023	^[14]	1
Bantamweight 145 lb (65.8 kg)	Vacant	July 26, 2023	^[15]	—
Flyweight 135 lb (61.2 kg)	Superlek Kiatmuu9	January 14, 2023	^[16]	1
Strawweight 125 lb (56.7 kg)	Jonathan Di Bella	October 21, 2022	^[17]	1
Muay Thai
Lightweight 170 lb (77.1 kg)	Regian Eersel	October 22, 2022	^[18]	2
Featherweight 155 lb (70.3 kg)	Tawanchai P.K.Saenchai	September 29, 2022	^[19]	1
Bantamweight 145 lb (65.8 kg)	Jonathan Haggerty	April 22, 2023	^[20]	0
Flyweight 135 lb (61.2 kg)	Rodtang Jitmuangnon	August 2, 2019	^[21]	5
Strawweight 125 lb (56.7 kg)	Joseph Lasiri	May 20, 2022	^[22]	0
	Prajanchai P.K.Saenchai (interim)	June 23, 2023	^[23]	0
Submission grappling
Lightweight 170 lb (77.1 kg)	Kade Ruotolo	October 22, 2022	^[24]	2
Flyweight 135 lb (61.2 kg)	Mikey Musumeci	October 1, 2022	^[25]	3

Women

Division	Champion	Since	Ref.	Defenses
Mixed martial arts
Strawweight 125 lb (56.7 kg)	Xiong Jing Nan	January 20, 2018		7
Atomweight 115 lb (52.2 kg)	Stamp Fairtex	September 30, 2023	^[26]	0
Kickboxing
Atomweight 115 lb (52.2 kg)	Janet Todd	February 28, 2020	^[27]	0
Muay Thai
Strawweight 125 lb (56.7 kg)	Smilla Sundell	April 22, 2022	^[28]	1
Atomweight 115 lb (52.2 kg)	Allycia Rodrigues	August 28, 2020	^[29]	1
Submission grappling
Atomweight 115 lb (52.2 kg)	Danielle Kelly	September 30, 2023	^[30]	0

Men's championship history

Heavyweight World Championship

Weight limit: 265 lb (120.2 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Brandon Vera def. Paul Cheng^[31]	ONE: Spirit of Champions Manila, Philippines	December 11, 2015	1982 days	1. def. Hideki Sekine at ONE: Age of Domination on Dec 2, 2016^[32] 2. def. Mauro Cerilli at ONE: Conquest of Champions on Nov 23, 2018^[33]
2	Arjan Bhullar	ONE: Dangal Kallang, Singapore	May 15, 2021	769 days
—	Anatoly Malykhin def. Kirill Grishenko for interim title	ONE: Bad Blood Kallang, Singapore	February 11, 2022	—
3	Anatoly Malykhin	ONE Friday Fights 22 Bangkok, Thailand	June 23, 2023	120 days (incumbent)

Light Heavyweight World Championship

Weight limit: 225 lb (102.1 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Roger Gracie def. Michal Pasternak^[34]	ONE: Ascent to Power Kallang, Singapore	May 6, 2016	526 days
The title was vacated after Roger Gracie announced his retirement from MMA on October 14, 2017.^[35]
2	Aung La Nsang def. Alexandre Machado^[36]	ONE: Quest for Gold Yangon, Myanmar	February 23, 2018	1160 days	1. def. Brandon Vera at ONE: Century − Part 2 on Oct 13, 2019^[37]
3	Reinier de Ridder	ONE on TNT 4 Kallang, Singapore	April 28, 2021	584 days
4	Anatoly Malykhin	ONE on Prime Video 5 Pasay, Philippines	December 3, 2022	322 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Roman Kryklia def. Tarik Khbabez^[38]	ONE: Age Of Dragons Beijing, China	November 16, 2019	1435 days (incumbent)	1. def. Andrei Stoica at ONE: Collision Course on Dec 18, 2020 2. def. Murat Aygün at ONE: Full Circle on Feb 25, 2022

Middleweight World Championship

Weight limit: 205 lb (93 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Igor Svirid def. Leandro Ataides^[39]	ONE: Battle of the Lions Kallang, Singapore	November 7, 2014	336 days
2	Vitaly Bigdash	ONE: Tigers of Asia Kuala Lumpur, Malaysia	October 9, 2015	630 days	1. def. Aung La Nsang at ONE: Quest for Power on Jan 14, 2017^[40]
3	Aung La Nsang	ONE: Light of a Nation Yangon, Myanmar	June 30, 2017	1218 days	1. def. Ken Hasegawa at ONE: Spirit of a Warrior on Jun 29, 2018^[41] 2. def. Mohammad Karaki at ONE: Pursuit of Greatness on Oct 26, 2018^[42] 3. def. Ken Hasegawa at ONE: A New Era on Mar 31, 2019^[43]
4	Reinier de Ridder	ONE: Inside the Matrix Kallang, Singapore	October 30, 2020	1086 days (incumbent)	1. def. Kiamrian Abbasov at ONE: Full Circle on Feb 25, 2022 2. def. Vitaly Bigdash at ONE 159 on Jul 22, 2022

Welterweight World Championship

Weight limit: 185 lb (83.9 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Nobutatsu Suzuki def. Brock Larson^[44]	ONE: War of Nations Kuala Lumpur, Malaysia	March 14, 2014	168 days
2	Ben Askren	ONE: Reign of Champions Dubai, United Arab Emirates	August 29, 2014	1520 days	NC. against Luis Santos at ONE: Valor of Champions on April 24, 2015 1. def. Agilan Thani at ONE: Dynasty of Heroes on May 26, 2017 2. def. Zebaztian Kadestam at ONE: Shanghai on Sep 2, 2017 3. def. Shinya Aoki at ONE: Immortal Pursuit on Nov 24, 2017
Askren vacated the title on October 27, 2018 when he was released from his contract.^[45]
3	Zebaztian Kadestam def. Tyler McGuire^[46]	ONE: Warrior's Dream Jakarta, Indonesia	November 17, 2018	342 days	1. def. Georgiy Kichigin at ONE: Reign of Valor on Mar 8, 2019
4	Kiamrian Abbasov	ONE: Dawn Of Valor Jakarta, Indonesia	October 25, 2019	1119 days	1. def. James Nakashima at ONE: Inside the Matrix 2 on Nov 6, 2020^[47]
Abbasov was stripped of the title on November 17, 2022, after failing to make weight for his title defense against Christian Lee at ONE on Prime Video 4.^[48]
5	Christian Lee def. Kiamrian Abbasov	ONE on Prime Video 4 Kallang, Singapore	November 19, 2022	336 days (incumbent)

Lightweight World Championship

Weight limit: 170 lb (77.1 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Kotetsu Boku def. Zorobabel Moreira^[49]	ONE: Rise of Kings Kallang, Singapore	October 6, 2012	181 days
2	Shinya Aoki	ONE: Kings and Champions Kallang, Singapore	April 5, 2013	1316 days	1. def. Kamal Shalorus at ONE: Reign of Champions on Aug 29, 2014^[50] 2. def. Koji Ando at ONE: Warrior's Quest on May 22, 2015^[51]
3	Eduard Folayang	ONE: Defending Honor Kallang, Singapore	November 11, 2016	364 days	1. def. Ev Ting at ONE: Kings of Destiny on Apr 21, 2017^[52]
4	Martin Nguyen	ONE: Legends of the World Manila, Philippines	November 10, 2017	322 days
Nguyen vacated the title on September 28, 2018 due to suffering an injury in training, rendering him unable to defend the title.^[53]
5	Eduard Folayang (2) def. Amir Khan^[54]	ONE: Conquest of Champions Manila, Philippines	November 23, 2018	128 days (492 days)
6	Shinya Aoki (2)	ONE: A New Era Tokyo, Japan	March 31, 2019	47 days (1410 days)
7	Christian Lee	ONE: Enter the Dragon Kallang, Singapore	May 17, 2019	861 days	1. def. Iuri Lapicus at ONE: Inside the Matrix on Oct 30, 2020 2. def. Timofey Nastyukhin at ONE on TNT 2 on Apr 14, 2021
8	Ok Rae Yoon	ONE: Revolution Kallang, Singapore	September 24, 2021	336 days
9	Christian Lee (2)	ONE 160 Kallang, Singapore	August 26, 2022	421 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Regian Eersel def. Nieky Holzken^[55]	ONE: Enter the Dragon Kallang, Singapore	May 17, 2019	1618 days (incumbent)	1. def. Nieky Holzken at ONE: Dawn Of Valor on Oct 25, 2019^[56] 2. def. Mustapha Haida at ONE: Fists Of Fury 3 on Feb 26, 2021 3. def. Islam Murtazaev at ONE: Winter Warriors on Dec 3, 2021 4. def. Arian Sadikovic at ONE 156 on Apr 22, 2022
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Regian Eersel def. Sinsamut Klinmee	ONE on Prime Video 3 Kuala Lumpur, Malaysia	October 22, 2022	364 days (incumbent)	1. def. Sinsamut Klinmee at ONE Friday Fights 9 on Mar 17, 2023 2. def. Dmitry Menshikov at ONE Fight Night 11 on June 9, 2023
Submission grappling
No.	Name	Event	Date	Reign	Defenses
1	Kade Ruotolo def. Uali Kurzhev	ONE on Prime Video 3 Kuala Lumpur, Malaysia	October 22, 2022	364 days (incumbent)	1. def. Matheus Gabriel at ONE on Prime Video 5 on Dec 3, 2022 2. def. Tommy Langaker at ONE Fight Night 11 on June 9, 2023

Featherweight World Championship

Weight limit: 155 lb (70.3 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Honorio Banario def. Eric Kelly^[57]	ONE: Return of Warriors Kuala Lumpur, Malaysia	February 2, 2013	118 days
2	Koji Oishi	ONE FC: Rise to Power Pasay, Philippines	May 31, 2013	455 days	1. def. Honorio Banario at ONE: Moment of Truth on Dec 6, 2013^[58]
3	Jadamba Narantungalag	ONE: Reign of Champions Dubai, United Arab Emirates	August 29, 2014	449 days
—	Marat Gafurov def. Martin Nguyen for interim title^[59]	ONE: Odyssey of Champions Jakarta, Indonesia	September 27, 2015	—
4	Marat Gafurov	ONE: Dynasty of Champions (Beijing II) Beijing, China	November 21, 2015	636 days	1. def. Kazunori Yokota at ONE: Kingdom of Champions on May 27, 2016^[60] 2. def. Jadamba Narantungalag at ONE: Defending Honor on Nov 11, 2016
5	Martin Nguyen	ONE: Quest for Greatness Kuala Lumpur, Malaysia	August 18, 2017	1169 days	1. def. Christian Lee at ONE: Unstoppable Dreams on May 18, 2018.^[61] 2. def. Jadamba Narantungalag at ONE: Roots of Honor on Apr 12, 2019^[62] 3. def. Koyomi Matsushima at ONE: Dawn of Heroes on Aug 2, 2019^[63]
6	Thanh Le	ONE: Inside the Matrix Kallang, Singapore	October 30, 2020	665 days	1. def. Garry Tonon at ONE: Lights Out on Mar 11, 2022
7	Tang Kai	ONE 160 Kallang, Singapore	August 26, 2022	421 days (incumbent)
—	Thanh Le def. Ilya Freymanov for interim title	ONE Fight Night 15 Bangkok, Thailand	October 7, 2023	14 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Superbon Singha Mawynn def. Giorgio Petrosyan	ONE: First Strike Kallang, Singapore	October 15, 2021	456 days	1. def. Marat Grigorian on ONE: X at Mar 26, 2022
2	Chingiz Allazov	ONE Fight Night 6 Bangkok, Thailand	January 14, 2023	280 days (incumbent)	1. def. Marat Grigorian at ONE Fight Night 13 on August 5, 2023
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Petchmorakot Petchyindee def. Pongsiri P.K. Saenchai	ONE: Warrior's Code Jakarta, Indonesia	February 7, 2020	965 days	1. def. Yodsanklai Fairtex at ONE: No Surrender on Jul 31, 2020 2. def. Magnus Andersson at ONE: A New Breed 3 on Sep 18, 2020^[64] 3. def. Jimmy Vienot at ONE 157 on May 20, 2022
2	Tawanchai P.K.Saenchai	ONE 161 Kallang, Singapore	September 29, 2022	387 days (incumbent)	1. def. Jamal Yusupov at ONE Fight Night 7 on Feb 25, 2023

Bantamweight World Championship

Weight limit: 145 lb (65.8 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Kim Soo Chul def. Leandro Issa^[65]	ONE: Rise of Kings Kallang, Singapore	October 6, 2012	377 days
—	Bibiano Fernandes def. Koetsu Okazaki for interim title^[66]	ONE: Rise to Power Pasay, Philippines	May 31, 2013	—
2	Bibiano Fernandes	ONE FC: Total Domination Kallang, Singapore	October 18, 2013	1848 days	1. def. Masakatsu Ueda at ONE FC: Rise of Heroes on May 2, 2014^[67] 2. def. Dae Hwan Kim at ONE FC: Warrior's Way on Dec 5, 2014^[68] 3. def. Toni Tauru at ONE: Kingdom of Warriors on Jul 18, 2015^[69] 4. def. Kevin Belingon at ONE: Dynasty of Champions (Changsha) on Jan 23, 2016^[70] 5. def. Reece McLaren at ONE: Age of Domination on Dec 2, 2016^[71] 6. def. Andrew Leone at ONE: Kings & Conquerors on Aug 5, 2017^[72] 7. def. Martin Nguyen at ONE: Iron Will on Mar 24, 2018^[73]
—	Kevin Belingon def. Martin Nguyen for interim title^[74]	ONE: Reign of Kings Manila, Philippines	July 27, 2018	—
3	Kevin Belingon	ONE: Heart of the Lion Kallang, Singapore	November 9, 2018	142 days
4	Bibiano Fernandes (2)	ONE: A New Era Tokyo, Japan	March 31, 2019	1076 days	1. def. Kevin Belingon at ONE: Century − Part 2 on Oct 13, 2019^[75]
5	John Lineker	ONE: Lights Out Kallang, Singapore	March 11, 2022	223 days
Lineker was stripped of the title on October 20, 2022, after failing to make weight for his title defense against Fabrício Andrade at ONE on Prime Video 3.^[76]
6	Fabrício Andrade def. John Lineker	ONE Fight Night 7 Bangkok, Thailand	February 25, 2023	238 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Alaverdi Ramazanov def. Zhang Chenglong^[77]	ONE: Mark Of Greatness Kuala Lumpur, Malaysia	December 6, 2019	413 days
2	Capitan Petchyindee	ONE: Unbreakable Kallang, Singapore	January 22, 2021	428 days	1. def. Mehdi Zatout at ONE: Revolution on Sep 24, 2021
3	Hiroki Akimoto	ONE: X Kallang, Singapore	March 26, 2022	238 days
4	Petchtanong Petchfergus	ONE 163 Kallang, Singapore	November 19, 2022	249 days
Petchtanong was stripped of the title on July 26, 2023, due to tested positive for both metenolone and noldenone, which is a banned substance according to International Doping Tests & Management.^[78]
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Nong-O Gaiyanghadao def. Han Zihao^[79]	ONE: Clash of Legends Bangkok, Thailand	February 16, 2019	1526 days	1. def. Hiroaki Suzuki at ONE: Warriors of Light on May 10, 2019^[80] 2. def. Brice Delval at ONE: Immortal Triumph on Sep 6, 2019^[81] 3. def. Saemapetch Fairtex at ONE: Edge Of Greatness on Nov 22, 2019^[82] 4. def. Rodlek P.K. Saenchai at ONE: Collision Course on Dec 18, 2020 5. def. Felipe Lobo at ONE: X on Mar 26, 2022 6. def. Liam Harrison at ONE on Prime Video 1 on Aug 27, 2022 7. def. Alaverdi Ramazanov at ONE Friday Fights 1 on Jan 20, 2023
2	Jonathan Haggerty	ONE Fight Night 9 Bangkok, Thailand	April 22, 2023	182 days (incumbent)

Flyweight World Championship

Weight limit: 135 lb (61.2 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Adriano Moraes def. Geje Eustaquio^[83]	ONE: Rise of the Kingdom Phnom Penh, Cambodia	September 12, 2014	435 days	1. def. Riku Shibuya at ONE: Age of Champions on Mar 13, 2015^[84]
2	Kairat Akhmetov	ONE: Dynasty of Champions (Beijing II) Beijing, China	November 21, 2015	623 days
—	Adriano Moraes def. Tilek Batyrov for interim title^[85]	ONE: Heroes of the World Macau, China	August 13, 2016	—
3	Adriano Moraes (2)	ONE: Kings & Conquerors Macau, China	August 5, 2017	322 days (757 days)	1. def. Danny Kingad at ONE: Legends of the World on Nov 10, 2017^[86]
—	Geje Eustaquio def. Kairat Akhmetov for interim title^[87]	ONE: Global Superheroes Manila, Philippines	January 26, 2018	—
4	Geje Eustaquio	ONE: Pinnacle of Power Beijing, China	June 23, 2018	216 days
5	Adriano Moraes (3)	ONE: Hero's Ascent Manila, Philippines	January 25, 2019	1310 days (2067 days)	1. def. Demetrious Johnson at ONE on TNT 1 on Apr 7, 2021 2. def. Yuya Wakamatsu at ONE: X on Mar 26, 2022
6	Demetrious Johnson	ONE on Prime Video 1 Kallang, Singapore	August 27, 2022	420 days (incumbent)	1. def. Adriano Moraes at ONE Fight Night 10 on May 5, 2023
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Petchdam Petchyindee def. Elias Mahmoudi^[88]	ONE: Warriors of Light Bangkok, Thailand	May 10, 2019	98 days
2	Ilias Ennahachi	ONE: Dreams of Gold Bangkok, Thailand	August 16, 2019	1236 days	1. def. Wang Wenfeng at ONE: Age Of Dragons on Nov 16, 2019^[89] 2. def. Superlek Kiatmuukao at ONE: Fists Of Fury on Feb 26, 2021
Ennahachi vacated the belt on January 3, 2023, due to his inability to make the flyweight limit of 135 pounds while hydrated.^[90]
3	Superlek Kiatmuukao def. Daniel Puertas	ONE Fight Night 6 Bangkok, Thailand	January 14, 2023	280 days (incumbent)	1. def. Danial Williams at ONE Fight Night 8 on Mar 25, 2023
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Sam-A Gaiyanghadao def. Sergio Wielzen^[91]	ONE: Unstoppable Dreams Kallang, Singapore	May 18, 2018	351 days
2	Jonathan Haggerty	ONE: For Honor Jakarta, Indonesia	May 4, 2019	90 days
3	Rodtang Jitmuangnon	ONE: Dawn of Heroes Manila, Philippines	August 2, 2019	1541 days (incumbent)	1. def. Walter Gonçalves at ONE: Century − Part 2 on Oct 13, 2019^[92] 2. def. Jonathan Haggerty at ONE: A New Tomorrow on Jan 10, 2020^[93] 3. def. Petchdam Petchyindee at ONE: No Surrender on Jul 31, 2020^[94] 4. def. Joseph Lasiri at ONE on Prime Video 4 on Nov 19, 2022 5. def. Edgar Tabares at ONE Fight Night 10 on May 5, 2023
Submission grappling
No.	Name	Event	Date	Reign	Defenses
1	Mikey Musumeci def. Cleber Souza	ONE on Prime Video 2 Kallang, Singapore	October 1, 2022	385 days (incumbent)	1. def. Bayanduuren Gantumur at ONE Fight Night 6 on Jan 14, 2023 2. def. Osamah Almarwai at ONE Fight Night 10 on May 5, 2023 3. def. Jarred Brooks at ONE Fight Night 13 on August 5, 2023

Strawweight World Championship

Weight limit: 125 lb (56.7 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Dejdamrong Sor Amnuaysirichoke def. Roy Doliguez^[95]	ONE: Warrior's Quest Kallang, Singapore	May 22, 2015	371 days
2	Yoshitaka Naito	ONE: Kingdom of Champions Bangkok, Thailand	May 27, 2016	561 days	1. def. Joshua Pacio at ONE: State of Warriors on Oct 7, 2016^[96]
3	Alex Silva	ONE: Warriors of the World Bangkok, Thailand	December 9, 2017	154 days
4	Yoshitaka Naito (2)	ONE: Grits And Glory Jakarta, Indonesia	May 12, 2018	133 days (694 days)
5	Joshua Pacio	ONE: Conquest of Heroes Jakarta, Indonesia	September 22, 2018	119 days
6	Yosuke Saruta	ONE: Eternal Glory Jakarta, Indonesia	January 19, 2019	83 days
7	Joshua Pacio (2)	ONE: Roots of Honor Manila, Philippines	April 12, 2019	1331 days (1450 days)	1. def. Rene Catalan at ONE: Masters Of Fate on Nov 8, 2019 2. def. Alex Silva at ONE: Fire & Fury on Jan 31, 2020 3. def. Yosuke Saruta at ONE: Revolution on Sep 24, 2021
8	Jarred Brooks	ONE 164 Manila, Philippines	December 3, 2022	322 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Sam-A Gaiyanghadao def. Wang Junguang^[97]	ONE: Mark Of Greatness Kuala Lumpur, Malaysia	December 6, 2019	806 days
Sam-A vacated the title on February 19, 2022 due to retirement.^[98]
2	Jonathan Di Bella def. Zhang Peimian	ONE 162 Kuala Lumpur, Malaysia	October 21, 2022	365 days (incumbent)	1. def. Danial Williams at ONE Fight Night 15 on Oct 7, 2023
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Sam-A Gaiyanghadao def. Rocky Ogden	ONE: King of the Jungle Kallang, Singapore	February 28, 2020	518 days	1. def. Josh Tonna at ONE: Reign of Dynasties on Oct 9, 2020^[99]
2	Prajanchai P.K. Saenchai	ONE: Battleground Kallang, Singapore	July 30, 2021	294 days
3	Joseph Lasiri	ONE 157 Kallang, Singapore	May 20, 2022	519 days (incumbent)
—	Prajanchai P.K. Saenchai def. Sam-A Gaiyanghadao for interim title	ONE Friday Fights 22 Bangkok, Thailand	June 23, 2023	—

Women's championship history

Women's Strawweight World Championship

Weight limit: 125 lb (56.7 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Xiong Jing Nan def. Tiffany Teo	ONE: Kings of Courage Jakarta, Indonesia	January 20, 2018	2100 days (incumbent)	1. def. Laura Balin at ONE: Pinnacle of Power on Jun 23, 2018 2. def. Samara Santos at ONE: Beyond the Horizon on Sep 8, 2018 3. def. Angela Lee at ONE: A New Era on Mar 31, 2019 4. def. Tiffany Teo at ONE: Inside the Matrix on Oct 3, 2020 5. def. Michelle Nicolini at ONE: Empower on Sep 3, 2021 6. def. Ayaka Miura at ONE: Heavy Hitters on Jan 14, 2022 7. def. Angela Lee at ONE on Prime Video 2 on Oct 1, 2022
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Smilla Sundell def. Jackie Buntan	ONE 156 Kallang, Singapore	April 22, 2022	547 days (incumbent)	1. def. Allycia Rodrigues at ONE Fight Night 14 on Sep 30, 2023

Women's Atomweight World Championship

Weight limit: 115 lb (52.2 kg)

Mixed martial arts (MMA)
No.	Name	Event	Date	Reign	Defenses
1	Angela Lee def. Mei Yamaguchi^[100]	ONE: Ascent to Power Kallang, Singapore	May 6, 2016	2703 days	1. def. Jenny Huang at ONE: Warrior Kingdom on Mar 11, 2017^[101] 2. def. Istela Nunes at ONE: Dynasty of Heroes on May 26, 2017^[102] 3. def. Mei Yamaguchi at ONE: Unstoppable Dreams on May 18, 2018^[103] 4. def. Xiong Jing Nan at ONE: Century − Part 1 on Oct 13, 2019^[104] 5. def. Stamp Fairtex at ONE: X on Mar 26, 2022
Lee vacated the title on September 30, 2023 due to retirement from MMA at ONE Fight Night 14.^[105]
2	Stamp Fairtex def. Ham Seo-hee	ONE Fight Night 14 Kallang, Singapore	September 30, 2023	21 days (incumbent)
Kickboxing
No.	Name	Event	Date	Reign	Defenses
1	Chuang Kai Ting def. Yodcherry Sityodtong^[106]	ONE: Battle for the Heavens Guangzhou, China	July 7, 2018	91 days
2	Stamp Fairtex	ONE: Kingdom of Heroes Bangkok, Thailand	October 6, 2018	510 days
3	Janet Todd	ONE: King of the Jungle Kallang, Singapore	February 28, 2020	1331 days (incumbent)
Muay Thai
No.	Name	Event	Date	Reign	Defenses
1	Stamp Fairtex def. Janet Todd	ONE: Call to Greatness Kallang, Singapore	February 22, 2019	553 days	1. def. Alma Juniku at ONE: Legendary Quest on Jun 15, 2019^[107]
2	Allycia Rodrigues	ONE: A New Breed Bangkok, Thailand	August 28, 2020	1149 days (incumbent)	1. def. interim champion Janet Todd at ONE Fight Night 8 on Mar 25, 2023
—	Janet Todd def. Lara Fernandez for interim title	ONE 159 Kallang, Singapore	July 22, 2022	—
Submission grappling
No.	Name	Event	Date	Reign	Defenses
1	Danielle Kelly def. Jessa Khan	ONE Fight Night 14 Kallang, Singapore	September 30, 2023	21 days (incumbent)

Tournament winners

Tournament	Winner	Runner-up	Event	Date
Bantamweight	Masakatsu Ueda	Kevin Belingon	ONE FC: Rise to Power	May 31, 2013
Malaysia Featherweight	A.J. Lias Mansor	Melvin Yeoh	ONE FC: Warrior Spirit	November 15, 2013
Cambodia Featherweight	Sam Ang Dun	Chan Rothana	ONE FC: Rise of the Kingdom	September 12, 2014
Beijing Featherweight	Li Kai Wen	Wang Ya Wei	ONE FC: Dynasty of Champions (Beijing)	December 19, 2014
Beijing Flyweight Tournament	Wei Bin Li	Wang Wei
Guangzhou Featherweight	Huang Di Yuan	Ma Jia Wen	ONE: Dynasty of Champions (Guangzhou)	June 20, 2015
Guangzhou Flyweight	Wu Ze	Yang Jian Bing
Myanmar Featherweight	Tha Pyay Nyo	Myo Man Thit	ONE: Kingdom of Warriors	July 18, 2015
Myanmar Lightweight Tournament	Thway Thit Aung	Saw Ba Oo
Beijing Featherweight Tournament	Yang Sen	Zhang Jia Cai	ONE: Dynasty of Champions (Beijing II)	November 21, 2015
Changsha Bantamweight	Ma Hao Bin	Bu Huo You Ga	ONE: Dynasty of Champions (Changsha)	January 23, 2016
Hefei Flyweight	Huo You Xia Bu	Hao Jie Li	ONE: Dynasty of Champions (Anhui)	July 2, 2016
Myanmar Featherweight	Phoe Thaw	Saw Yan Paing	ONE: State of Warriors	October 7, 2016
Myanmar Flyweight	Saw Min Min	Shwe Kyaung Thar	ONE: Light of a Nation	June 30, 2017
Lightweight	Christian Lee	Saygid Guseyn Arslanaliev	ONE: Century	October 13, 2019
Flyweight	Demetrious Johnson	Danny Kingad
Featherweight Kickboxing	Giorgio Petrosyan	Samy Sana
	Chingiz Allazov	Sitthichai Sitsongpeenong	ONE: X	March 26, 2022
Bantamweight Muay Thai	Rodlek P.K. Saenchai	Kulabdam Sor Jor Piek-U-Thai	ONE: A New Breed	August 28, 2020
Women's Atomweight	Stamp Fairtex	Ritu Phogat	ONE: Winter Warriors	December 3, 2021
Heavyweight Kickboxing	Roman Kryklia	Iraj Azizpour	ONE 163	November 19, 2022

Records

Most wins in title bouts

Title wins	Champion	Weight class	W	D	NC	L
11	Bibiano Fernandes	Bantamweight of MMA	11	0	0	2
8	Adriano Moraes	Flyweight of MMA	8	0	0	4
	Xiong Jing Nan	Women's Strawweight of MMA Women's Atomweight of MMA	8 0	0 0	0 0	0 1
	Nong-O Gaiyanghadao	Bantamweight of Muay Thai	8	0	0	1
	Regian Eersel	Lightweight of Kickboxing Lightweight of Muay Thai	5 3	0 0	0 0	0 0
6	Aung La Nsang	Light Heavyweight of MMA Middleweight of MMA	2 4	0 0	0 0	1 2
	Angela Lee	Women's Strawweight of MMA Women's Atomweight of MMA	0 6	0 0	0 0	2 0
	Rodtang Jitmuangnon	Flyweight of Muay Thai	6	0	0	0
5	Martin Nguyen	Lightweight of MMA Featherweight of MMA Bantamweight of MMA	1 4 0	0 0 0	0 0 0	0 2 2
	Joshua Pacio	Strawweight of MMA	5	0	0	3
	Christian Lee	Welterweight of MMA Lightweight of MMA Featherweight of MMA	1 4 0	0 0 0	0 0 0	0 1 1
4	Shinya Aoki	Welterweight of MMA Lightweight of MMA	0 4	0 0	0 0	1 2
	Sam-A Gaiyanghadao	Strawweight of Kickboxing Flyweight of Muay Thai Strawweight of Muay Thai	1 1 2	0 0 0	0 0 0	0 1 1
	Marat Gafurov	Featherweight of MMA	4	0	0	1
	Ben Askren	Welterweight of MMA	4	0	1	0
	Reinier de Ridder	Light Heavyweight of MMA Middleweight of MMA	1 3	0 0	0 0	1 0
	Petchmorakot Petchyindee	Featherweight of Muay Thai	4	0	0	1
	Mikey Musumeci	Flyweight of Submission grappling	4	0	0	0

Most consecutive title defenses

Defenses	Champion	Division	Period
7	Bibiano Fernandes	Bantamweight of MMA	October 13, 2013 — July 27, 2018
	Xiong Jing Nan	Women's Strawweight of MMA	January 20, 2018 — present
	Nong-O Gaiyanghadao	Bantamweight of Muay Thai	February 16, 2019 — April 22, 2023
5	Angela Lee	Women's Atomweight of MMA	May 6, 2016 — September 30, 2023
	Rodtang Jitmuangnon	Flyweight of Muay Thai	August 2, 2019 — present
4	Regian Eersel	Lightweight of Kickboxing	May 17, 2019 — present
3	Ben Askren	Welterweight of MMA	August 29, 2014 — October 24, 2018
	Aung La Nsang	Middleweight of MMA	June 30, 2017 — October 30, 2020
	Martin Nguyen	Featherweight of MMA	August 18, 2017 — October 30, 2020
	Petchmorakot Petchyindee	Featherweight of Muay Thai	February 7, 2020 — September 29, 2022
	Joshua Pacio	Strawweight of MMA	April 12, 2019 — December 3, 2022
	Mikey Musumeci	Flyweight of Submission Grappling	October 1, 2022 — present

Multi-division champions

Interim title

No.	Champion	Division	Won	Lost	Defenses	Reign	Total Reign
1	Martin Nguyen	Lightweight of MMA	November 10, 2017 (ONE: Legends of the World)	September 28, 2018 (Stripped)	0	322 days	1491 days
		Featherweight of MMA	August 18, 2017 (ONE: Quest for Greatness)	October 30, 2020 (ONE: Inside the Matrix)	3	1169 days
2	Aung La Nsang	Light Heavyweight of MMA	February 23, 2018 (ONE: Quest for Gold)	April 28, 2021 (ONE on TNT 4)	1	1161 days	2379 days
		Middleweight of MMA	June 30, 2017 (ONE: Light of a Nation)	October 30, 2020 (ONE: Inside the Matrix)	3	1218 days
3	Sam-A Gaiyanghadao	Strawweight of Kickboxing	December 6, 2019 (ONE: Mark Of Greatness)	February 19, 2022 (Retirement)	0	806 days	1674 days
		Flyweight of Muay Thai	May 18, 2018 (ONE: Unstoppable Dreams)	May 4, 2019 (ONE: For Honor)	0	350 days
		Strawweight of Muay Thai	February 28, 2020 (ONE: King of the Jungle)	30 July 2021 (ONE: Battleground)	1	518 days
4	Stamp Fairtex	Women's Atomweight of Kickboxing	October 6, 2018 (ONE: Kingdom of Heroes)	February 28, 2020 (ONE: King of the Jungle)	0	510 days	1063 days
		Women's Atomweight of Muay Thai	February 22, 2019 (ONE: Call to Greatness)	August 28, 2020 (ONE: A New Breed)	1	553 days
5	Reinier de Ridder	Light Heavyweight of MMA	April 28, 2021 (ONE on TNT 4)	December 3, 2022 (ONE on Prime Video 5)	0	584 days	1992 days
		Middleweight of MMA	October 30, 2020 (ONE: Inside the Matrix)	Present	2	1086 days
6	Regian Eersel	Lightweight of Muay Thai	October 22, 2022 (ONE on Prime Video 3)	Present	0	364 days	1982 days
		Lightweight of Kickboxing	May 17, 2019 (ONE: Enter the Dragon)	Present	4	1618 days
7	Christian Lee	Welterweight of MMA	November 19, 2022 (ONE on Prime Video 4)	Present	0	336 days	1618 days
		Lightweight of MMA	August 26, 2022 (ONE 160)	Present	0	421 days
			May 17, 2019 (ONE: Enter the Dragon)	September 24, 2021 (ONE: Revolution)	2	861 days
8	Jonathan Haggerty	Bantamweight of Muay Thai	April 22, 2023 (ONE Fight Night 9)	Present	0	182 days	272 days
		Flyweight of Muay Thai	May 4, 2019 (ONE: For Honor)	August 2, 2019 (ONE: Dawn of Heroes)	0	90 days

Simultaneous two division champions

This table, different from the previous one, only counts the periods in which the fighter loaded the titles simultaneously and the defenses in that period of time.

No.	Champion	Division	Span	Defenses	Simultaneous Reign
1	Martin Nguyen	Lightweight of MMA	November 10, 2017 — September 28, 2018	0	322 days
		Featherweight of MMA		1
2	Aung La Nsang	Light Heavyweight of MMA	February 23, 2018 — October 30, 2020	1	980 days
		Middleweight of MMA		3
3	Sam-A Gaiyanghadao	Strawweight of Kickboxing	February 28, 2020 — July 30, 2021	0	518 days
		Strawweight of Muay Thai		1
4	Stamp Fairtex	Women's Atomweight of Kickboxing	February 22, 2019 — February 28, 2020	0	371 days
		Women's Atomweight of Muay Thai		1
5	Reinier de Ridder	Light Heavyweight of MMA	April 28, 2021 — December 3, 2022	0	584 days
		Middleweight of MMA		2
6	Regian Eersel	Lightyweight of Muay Thai	October 22, 2022 — present	2	364 days
		Lightweight of Kickboxing		4
7	Christian Lee	Welteryweight of MMA	November 19, 2022 — present	0	337 days
		Lightweight of MMA		0

Champions by nationality

Fighters with multiple title reigns in a specific division will only be counted once. Interim champions who never became linear champions are only listed in parentheses.

Country	MMA	Kickboxing	Muay Thai	Submission Grappling	Tournament	Total (LC only)
United States	8	1	0 (1)	3	2	12
Brazil	6	0	1	0	0	7
Japan	5	1	0	0	1	6
Philippines	5	0	0	0	0	5
Russia	4	1	0	0	0	5
South Korea	3	0	0	0	0	3
Thailand	2	7	8	0	2	17
Netherlands	2	1	0	0	0	3
China	2	0	0	0	7	2
Myanmar	2	0	0	0	4	2
Australia	2	0	0	0	0	2
Kazakhstan	2	0	0	0	0	2
Sweden	1	0	1	0	0	2
Canada	1	1	0	0	0	2
Kyrgyzstan	1	0	0	0	0	1
Mongolia	1	0	0	0	0	1
England	0	0	2	0	0	2
Suriname	0	1	1	0	0	2
Italy	0	0	1	0	1	1
Belarus	0	1	0	0	1	1
Ukraine	0	1	0	0	0	1
Taiwan	0	1	0	0	0	1
Cambodia	0	0	0	0	1	0
Malaysia	0	0	0	0	1	0

See also

• List of current mixed martial arts champions
• List of Bellator MMA champions
• List of EliteXC champions
• List of Invicta FC champions
• List of Pride champions
• List of PFL champions
• List of Strikeforce champions
• List of UFC champions
• List of WEC champions
• Mixed martial arts weight classes

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External links

• Current title holders at ONE's official website