is a Japanese

mixed martial artist Mixed martial arts (MMA) is a full-contact fighting sport based on striking and grappling; incorporating techniques from various combat sports from around the world. In the early 20th century, various inter-stylistic contests took place t ...

. He currently competes in the

Flyweight Flyweight is a weight class in combat sports. Boxing Flyweight is a class in boxing which includes fighters weighing up to and including 51 kg (112 lb) for a title fight. Professional boxing The flyweight division was the last of boxin ...

division of

ONE Championship ONE Championship, formerly ONE Fighting Championship (ONE FC) until January 2015, is a Multinational corporation, multinational combat sports Promoter (entertainment), promotion founded on 14 July 2011 by Chatri Sityodtong and Victor Cui. Origi ...

, where he is the current ONE Flyweight World Champion.

Mixed martial arts career

ONE Championship

In the ONE debut, Wakamatsu faced Danny Kingad on September 22, 2018, at ONE: Conquest of Heroes. He lost the fight via unanimous decision.

ONE Flyweight World Grand Prix

In the quarterfinal of the ONE Flyweight World Grand Prix, Wakamatsu faced

Demetrious Johnson Demetrious Khrisna Johnson (born August 13, 1986) is an American former professional mixed martial artist. He competed in the Flyweight division of the Ultimate Fighting Championship (UFC), where he was the inaugural and former UFC Flyweight C ...

on March 31, 2019, at ONE: A New Era. He lost the fight via guillotine choke in round two. Wakamatsu was scheduled to face Reece McLaren in a reserve bout on August 2, 2019, at ONE: Dawn of Heroes. However, McLaren replacing injured

Kairat Akhmetov Kairat Akhmetov ( Kazakh: Қайрат Ахметов; born October 12, 1987) is a Kazakh professional mixed martial artist Mixed martial arts (MMA) is a full-contact fighting sport based on striking and grappling; incorporating techniq ...

against Danny Kingad in a semifinal, and Wakamatsu faced Geje Eustaquio instead. He won the fight via first round knockout.

Post Grand Prix

Wakamatsu faced Kim Dae-hwan on October 13, 2019, at ONE: Century – Part 1. He won the fight via unanimous decision. Wakamatsu faced Kim Kyu-sung on October 30, 2020, and aired on November 6, 2020, at ONE: Inside the Matrix 2. He won the fight via first round knockout. Wakamatsu faced Reece McLaren on April 7, 2021, and aired on April 21, 2021, at ONE on TNT 3. He won the fight via unanimous decision. Wakamatsu faced Hu Yong on December 3, 2021, at ONE: Winter Warriors. He won the fight via unanimous decision. Wakamatsu faced Adriano Moraes for the ONE Flyweight World Championship on March 26, 2022, at ONE: X. He lost the fight via guillotine choke in round three. Wakamatsu was scheduled to face Xie Wei on September 29, 2022, at

ONE 161 ''ONE 161: Petchmorakot vs. Tawanchai'' was a Combat sport event produced by ONE Championship that took place on September 29, 2022 at the Singapore Indoor Stadium in Kallang, Singapore. Background The event was originally expected to be head ...

. However, Xie pulled out for unknown reasons and was replaced by Wang Shuo. At the weigh-ins, Wang weighed in at 139.5 pounds, 4.5 pounds over the flyweight limit. Subsequently, the bout was scrapped after Wang pulled out from the event. Wakamatsu faced Woo Sung-hoon on November 19, 2022, at

ONE 163 ''ONE 163: Akimoto vs. Petchtanong'' was a Combat sport event produced by ONE Championship that took place on November 19, 2022, at the Singapore Indoor Stadium in Kallang, Singapore. Background A ONE Bantamweight Kickboxing World Championship ...

. At the weigh-ins, Wakamatsu weighed in at 139 pounds, 4 pounds over the flyweight limit. The bout proceeded at catchweight with Wakamatsu being fined 40% of his purse, which went to Woo. He lost the fight via technical knockout in round one. The bout between Wakamatsu and Xie was rescheduled on July 15, 2023, at ONE Fight Night 22. At the weigh-ins, Wakamatsu weighed in at 135.5 pounds, 0.5 pounds over the flyweight limit and Wakamatsu was fined their purse of his purse, which went to Xie. He won the fight via technical knockout in round one. Wakamatsu faced Danny Kingad in a rematch on January 28, 2024, at ONE 165. He won the fight via unanimous decision. Wakamatsu faced Gilbert Nakatani on December 7, 2024, at

ONE Fight Night 26 ''ONE Fight Night 26: Lee vs. Rasulov'' was a combat sports event produced by ONE Championship that took place on December 7, 2024, at Lumpinee Boxing Stadium in Bangkok, Thailand. Background A ONE Lightweight World Championship bout between ...

. He won the fight via unanimous decision.

ONE Flyweight World Champion

The rematch between Wakamatsu and Adriano Moraes for the vacant ONE Flyweight World Championship took place on March 23, 2025, at

ONE 172 ''ONE 172: Takeru vs. Rodtang'' was a combat sports event produced by ONE Championship that took place on March 23, 2025, at the Saitama Super Arena in Saitama, Japan. Background The event marked the promotion's first visit to Saitama and fif ...

. He won the title via technical knockout in round one and this win earned the ''$50,000 Performance of the Night'' bonuses.

Championships and accomplishments

Mixed martial arts

Pancrase is a Japanese mixed martial arts (MMA) promoter (entertainment), promotion company based in Tokyo. It was founded in 1993 by professional wrestlers Masakatsu Funaki and Minoru Suzuki. The name was based on pankration, a fighting sport in the An ...

** Pancrase Neo Blood Tournament Flyweight Winner (2016) *

** ONE Flyweight World Championship (One time; current)

Mixed martial arts record

, - , Win , align=center, 19–6 , Adriano Moraes , TKO (punches) ,

, , align=center, 1 , align=center, 3:39 , Saitama, Japan , , - , Win , align=center, 18–6 , Gilbert Nakatani , Decision (unanimous) ,

, , align=center, 3 , align=center, 5:00 ,

Bangkok Bangkok, officially known in Thai language, Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estim ...

, Thailand , , - , Win , align=center, 17–6 , Danny Kingad , Decision (unanimous) , ONE 165 , , align=center, 3 , align=center, 5:00 ,

Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...

, Japan , , - , Win , align=center, 16–6 , Xie Wei , TKO (punches) ,

ONE Fight Night 12 ''ONE Fight Night 12: Superlek vs. Khalilov'' was a combat sports event produced by ONE Championship that took place on July 15, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. Background A ONE Heavyweight World Championship unificatio ...

, , align=center, 1 , align=center, 2:03 ,

, Thailand , , - , Loss , align=center, 15–6 , Woo Sung-hoon , TKO (elbows and punches) ,

, , align=center, 3 , align=center, 5:00 ,

Kallang Kallang ( ) is a Planning Areas of Singapore, planning area and New towns of Singapore, residential zone located in the Central Region, Singapore, Central Region of Singapore. Development of the town is centered around the Kallang River, the l ...

, Singapore , , - , Loss , align=center, 15–5 , Adriano Moraes , Submission (guillotine choke) , ONE: X , , align=center, 3 , align=center, 3:58 ,

, Singapore , , - , Win , align=center, 15–4 , Hu Yong , Decision (unanimous) , ONE: Winter Warriors , , align=center, 3 , align=center, 5:00 ,

, Singapore , , - , Win , align=center, 14–4 , Reece McLaren , Decision (unanimous) , ONE on TNT 3 , , align=center, 3 , align=center, 5:00 ,

, Singapore , , - , Win , align=center, 13–4 , Kim Kyu-sung , KO (punch) , ONE: Inside the Matrix 2 , , align=center, 1 , align=center, 1:46 ,

, Singapore , , - , Win , align=center, 12–4 , Kim Dae-hwan , Decision (unanimous) , ONE: Century – Part 1 , , align=center, 3 , align=center, 5:00 ,

, Japan , , - , Win , align=center, 11–4 , Geje Eustaquio , KO (punch) , ONE: Dawn of Heroes , , align=center, 1 , align=center, 1:59 ,

Pasay Pasay, officially the City of Pasay (; ), is a Cities of the Philippines#Legal classification, highly urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 Philippine census, 2020 census, it has a ...

, Philippines , , - , Loss , align=center, 10–4 ,

, Submission (guillotine choke) , ONE: A New Era , , align=center, 2 , align=center, 2:40 ,

, Japan , , - , Loss , align=center, 10–3 , Danny Kingad , Decision (unanimous) , ONE: Conquest of Heroes , , align=center, 3 , align=center, 5:00 ,

Jakarta Jakarta (; , Betawi language, Betawi: ''Jakartè''), officially the Special Capital Region of Jakarta (; ''DKI Jakarta'') and formerly known as Batavia, Dutch East Indies, Batavia until 1949, is the capital and largest city of Indonesia and ...

, Indonesia , , - , Win , align=center, 10–2 , Mamoru Yamaguchi , Decision (unanimous) , Pancrase 297 , , align=center, 2 , align=center, 0:39 ,

, Japan , , - , Loss , align=center, 9–2 , Senzo Ikeda , TKO (knees and elbows) , Pancrase 293 , , align=center, 5 , align=center, 2:18 ,

, Japan , , - , Win , align=center, 9–1 , Shohei Masumizu , TKO (punches) , Pancrase 290 , , align=center, 2 , align=center, 2:53 ,

, Japan , , - , Win , align=center, 8–1 , Takahiro Furumaki , KO (punch) , Pancrase 287 , , align=center, 2 , align=center, 2:27 ,

, Japan , , - , Win , align=center, 7–1 , Yuki Uejima , TKO (punches) , Pancrase 285 , , align=center, 1 , align=center, 2:49 ,

, Japan , , - , Win , align=center, 6–1 , Yusuke Ogikubo , Decision (split) , Pancrase 283 , , align=center, 3 , align=center, 5:00 ,

, Japan , , - , Win , align=center, 5–1 , Kazuhisa Tanaka , KO (knee to the body) , Pancrase 280 , , align=center, 1 , align=center, 2:06 ,

, Japan , , - , Win , align=center, 4–1 , Masayuki Watanabe , TKO (punches) , Pancrase 278 , , align=center, 3 , align=center, 1:35 ,

, Japan , , - , Win , align=center, 3–1 , Naoki Tanada , TKO (punches) , Pancrase 276 , , align=center, 1 , align=center, 2:50 ,

, Japan , , - , Win , align=center, 2–1 , Sadashi Hamamatsu , TKO (punches) , Pancrase 274 , , align=center, 2 , align=center, 4:22 ,

Kitakyushu is a Cities of Japan, city located in Fukuoka Prefecture, Japan. As of June 1, 2019, Kitakyushu has an estimated population of 940,978, making it the second-largest city in both Fukuoka Prefecture and the island of Kyushu after the city of Fuk ...

, Japan , , - , Win , align=center, 1–1 , Yoshiya Shinba , KO (punches) , Fighting Network ZST: Challenge 148 , , align=center, 1 , align=center, 2:37 ,

, Japan , , - , Loss , align=center, 0–1 , Yuto Sekiguchi , KO (punches) , Vale Tudo Japan in Osaka , , align=center, 1 , align=center, 2:43 ,

Osaka is a Cities designated by government ordinance of Japan, designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the List of cities in Japan, third-most populous city in J ...

, Japan ,

References

External links

*
yuya-wakamatsu
at

ONE 1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sp ...

* {{DEFAULTSORT:wakamatsu, Yuya 1995 births Japanese male mixed martial artists Bantamweight mixed martial artists Flyweight mixed martial artists ONE Championship champions ONE Championship mixed martial artists Living people