Tatsuya Mizuno

is a Japanese mixed martial artist currently competing in the Middleweight division. A professional competitor since 2006, he has fought for DREAM, Pancrase, DEEP, M-1 Global, ProElite, ONE FC, K-1, and also participated in the Dynamite!! 2010 event.

Background Mizuno started competing in judo in high school, and currently holds a 3rd dan black belt in the discipline. On April 29, 2005, he became the champion of fifth Shooto East amateur mixed martial arts tournament, and on December 23, 2005, he took part in the U-FILE CAMP amateur tournament as member of Pankurasu geto.

On September 16, 2006, he defeated Yuji Sakuragi in his MMA debut at Pancrase: Blow 7. He fought against the likes Thiago Silva, Assuério Silva and Mirko Cro Cop early on in his career.

DREAM In 2010 Mizuno took part in the DREAM Light Heavyweight Grand Prix. He defeated Melvin Manhoef at DREAM 15, in the Light Heavyweight Grand Prix semifinal. In the final he fought with Gegard Mousasi, and lost to him by rear-naked choke submission.

Mizuno fought Sergei Kharitonov at DREAM's Dynamite!! 2010 New Year's Eve event and lost the fight via first-round KO.

On July 16, 2011, Mizuno defeated Trevor Prangley by KO (knee to the body) in the first round at Dream: Japan GP Final. Former UFC Middleweight Yushin Okami was present as his cornerman.

Post-DREAM On January 21, 2012, Mizuno defeated Ilima Maiava via submission (arm-triangle choke) in the second round.

In June 2012, Mizuno faced MMA veteran Renato Sobral at ONE Fighting Championship: Destiny of Warriors. Mizuno lost via armbar submission in 31 seconds of the first round.

He then faced fellow judoka Jason Jones at Glory 2: Brussels on October 6, 2012 in Brussels, Belgium. He lost the fight by unanimous decision.

Mizuno returned to the One FC promotion on October 18, 2013 against Rafael Silva. Mizuno won a three-round unanimous decision.

In Mizuno's next bout, he faced undefeated Brazilian Leandro Ataides at ONE Fighting Championship: Rise of Heroes on May 2, 2014. Mizuno was stopped by strikes at 0:47 of round one.

Mizuno faced Brayan Rafiq at ONE Fighting Championship: Battle of the Lions on November 7, 2014. He won the fight via unanimous decision.

Mizuno then faced João Batista Yoshimura at DEEP 98 on November 1, 2020. He lost the fight via second-round knockout.

Mizuno made his first title defense attempt in a rematch against Yoshimura at DEEP 102 on July 4, 2021. He lost the bout via second-round knockout.

Mizuno faced Seigo Mizuguchi on December 12, 2021 at DEEP 105 Impact, winning the bout in the first round after soccer kicking Mizuguchi.

Mizuno returned a year later to face Masashi Inada at DEEP 111 Impact on December 11, 2022, winning 19 seconds into the bout after dropping Inada with a knee and finishing him with ground and pound.

Mizuno faced Ryo Sakai for the Deep Super Heavyweight Championship on July 2, 2023 at DEEP 114 Impact, losing the bout in 42 seconds via TKO stoppage.

Championships and Accomplishments Deep Deep Middleweight Championship (one time; former) DREAM 2010 DREAM Light Heavyweight Grand Prix Runner Up

Mixed martial arts record Win

Masashi Inada Submission (kimura) DEEP 129 Impact

Tokyo, Japan Loss

Taisei Sekino TKO (soccer kicks and punches) Deep 121 Impact

Tokyo, Japan Win

Koji Shikuwa Decision (unanimous) DEEP 119 Impact

Tokyo, Japan Win

Lawdlain Saint Ilme KO (knee) DEEP Tokyo Impact 2023 6th Round

Tokyo, Japan Loss

Ryo Sakai TKO (punches) DEEP 114 Impact

Tokyo, Japan Win

Masashi Inada TKO (knee and punches) DEEP 111 Impact

Tokyo, Japan Win

Seigo Mizuguchi TKO (punch and soccer kick) DEEP 105 Impact

Tokyo, Japan Loss

João Batista Yoshimura KO (punches) DEEP: 102 Impact

Tokyo, Japan Loss

João Batista Yoshimura TKO (punches) DEEP: 98 Impact

Tokyo, Japan Win

Joshua Robison Submission (rear naked choke) DEEP 93 Impact

Tokyo, Japan Light Heavyweight bout. Win

Ryo Sakai Disqualification DEEP 92 Impact

Tokyo, Japan Light Heavyweight bout. Win

Mitsuyoshi Nakai Submission (head and arm choke) DEEP 90 Impact

Tokyo, Japan Win

Ryuta Sakurai Submission (sleeper choke) DEEP 87 Impact

Tokyo, Japan Win

Lee Eun-Su Submission (rear naked choke) Road FC 049

Seoul, South Korea Win

Taisuke Okuno Submission (sleeper choke) DEEP 82 Impact

Tokyo, Japan Won the vacant Deep Middleweight Championship. Win

Genpei Hayashi Decision (unanimous) DEEP 79 Impact

Tokyo, Japan Win

Jung Kyo Park Submission (rear naked choke) DEEP Cage Impact 2017

Tokyo, Japan Loss

Gilberto Galvao Decision (unanimous) ONE FC 47: Unbreakable Warriors

Kuala Lumpur, Malaysia Win

Mohamed Ali TKO (knee and punches) ONE FC 42: Ascent To Power

Kallang, Singapore Catchweight (209 lbs) bout. Loss

Jake Butler TKO (elbows) ONE FC 38: Clash of Heroes

Kuala Lumpur, Malaysia Light Heavyweight bout. Win

Jun Hee Moon TKO (retirement) DEEP 73 Impact

Tokyo, Japan Draw

Young Choi Technical Draw DEEP: Cage Impact 2015

Tokyo, Japan Win

Brayan Rafiq Decision (unanimous) ONE FC: Battle of the Lions

Kallang, Singapore Loss

Leandro Ataides KO (punches) ONE FC: Rise of Heroes

Pasay, Philippines Win

Rafael Silva Decision (unanimous) |ONE FC: Total Domination

Kallang, Singapore Middleweight debut. Loss

Jason Jones Decision (unanimous) Glory World Series: Glory 2

Brussels, Belgium Loss

Renato Sobral Submission (armbar) ONE FC: Destiny of Warriors

Kuala Lumpur, Malaysia Win

Ilima Maiava Submission (arm-triangle choke) ProElite 3

Honolulu, Hawaii, United States Win

Trevor Prangley TKO (knee to the body) Dream: Japan GP Final

Tokyo, Japan Loss

Sergei Kharitonov KO (knee) Dynamite!! 2010

Saitama, Japan Heavyweight debut. Loss

Gegard Mousasi Submission (rear-naked choke) DREAM 16

Nagoya, Japan DREAM Light Heavyweight GP Final; DREAM Light Heavyweight Championship. Win

Melvin Manhoef Submission (kimura) DREAM 15

Saitama, Japan DREAM Light Heavyweight GP Semifinal. Win

Ilir Latifi TKO (knee and punches) K-1: Rumble of the Kings

Stockholm, Sweden Win

Rafael Rodríguez Submission (rear-naked choke) M-1 Challenge 18: Netherlands Day Two

Hilversum, Netherlands Loss

Tom Blackledge Submission (rear-naked choke) M-1 Challenge 14: Japan

Tokyo, Japan Win

Jose Beltran Martinez TKO (punches) M-1 Challenge 8: USA

Kansas City, Missouri, United States Loss

Bruno Carvalho Decision (unanimous) M-1 Challenge 6: Korea

South Korea Win

Yoshiyuki Nakanishi KO (punches) M-1 Challenge 5: Japan

Tokyo, Japan Loss

Mirko Cro Cop TKO (punches) DREAM 1: Lightweight Grand Prix 2008 First Round

Saitama, Saitama, Japan Win

Masayuki Kono TKO (punches) Pancrase: Rising 9

Tokyo, Japan Loss

Assuério Silva TKO (punches) Pancrase: Rising 5

Tokyo, Japan For the vacant Pancrase Heavyweight Championship. Loss

Thiago Silva KO (soccer kick) Pancrase: Rising 2

Tokyo, Japan Win

Yasuaki Miura Technical Submission (kimura) Pancrase: Blow 10

Tokyo, Japan Win

Yuji Sakuragi Submission (rear-naked choke) Pancrase: Blow 7

Tokyo, Japan