Seigo Mizuguchi
UFC Debut
Record
Streak
L1
Age
Date of birth
- Fighting out of
- Toyama
- Born
- Japan
- Camp
- Axion
- Weight class
- Heavyweight
- Height
- 5'10" · 178 cm
Before the UFC
Seigo Mizuguchi makes their UFC debut
Our striking, grappling, and schedule metrics are measured from UFC fights, so they come online after this bout. Here is the career they bring in — and how live the opposition has been.
Pre-UFC opposition
ModerateOpponents' combined record
297-254-8
.539 win rate
Winning-record opponents
14 of 24
carried winning pro records
Pro bouts faced
45
24 opponents with records on file
A descriptive read of the non-UFC slate from opponents’ full career pro records — not a UFC-grade Schedule Score.
UFC fight history
No UFC bouts on record yet.
Outside the UFC
across 45 bouts · 4 promotions · wins by 8 KO · 9 sub · 1 decDeep · ROMAN · Grachan / Brave · Astra
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| L | Takuya Naito | KO/TKO | Punches | R1 | 0:36 | Deep | May 4, 2026 |
| W | Buffalo Buffalo | Submission | Scarf Hold Armlock | R1 | 1:23 | Deep | Nov 2, 2025 |
| L | Babacar Gaye | KO/TKO | Corner Stoppage | R1 | 0:18 | ROMAN | Oct 14, 2024 |
| W | Chota Sakai | Submission | Keylock | R1 | 2:45 | Deep | Jul 14, 2024 |
| L | Decision | Split | R2 | 5:00 | Deep | Nov 11, 2023 | |
| L | Hidenori Ebata | KO/TKO | Punches | R1 | 2:28 | Deep | May 7, 2023 |
| W | Kirihito Ando | KO/TKO | Leg Injury | R2 | 4:46 | Deep | Dec 11, 2022 |
| W | Thomas Thomas | Submission | Scarf Hold | R1 | 3:53 | Deep | Aug 21, 2022 |
| L | Masashi Inada | KO/TKO | Punches | R1 | 4:58 | Deep | May 8, 2022 |
| L | Tatsuya Mizuno27-16-1 | KO/TKO | Punch and Soccer Kick | R1 | 1:15 | Deep | Dec 12, 2021 |
| L | Lawdlain Saint-Ilme | Decision | Unanimous | R2 | 5:00 | Deep | Sep 23, 2021 |
| L | Hidetaka Arato | Decision | Unanimous | R2 | 5:00 | Grachan / Brave | Apr 25, 2021 |
| L | Hideki Sekine14-8 | KO/TKO | Punches | R1 | 0:16 | Deep | Feb 21, 2021 |
| L | Roque Martinez19-11-2 | KO/TKO | Punches | R2 | 2:09 | Deep | Dec 15, 2019 |
| W | Kiyoshi Kuwabara16-14 | Submission | Scarf Hold | R1 | 1:23 | Deep | Mar 16, 2019 |
| L | Ryo Sakai15-15 | Decision | Unanimous | R2 | 5:00 | Deep | Oct 27, 2018 |
| L | Kazuhiro Nakamura21-13 | KO/TKO | Corner Stoppage | R2 | 3:25 | Deep | Jul 21, 2014 |
| W | Ryo Sakai15-15 | KO/TKO | Punches | R1 | 2:31 | Deep | Mar 22, 2014 |
| W | Jong Wang Kim13-23 | KO/TKO | Punches | R1 | 1:31 | Deep | Nov 24, 2013 |
| L | Jong Wang Kim13-23 | KO/TKO | Punches | R1 | 0:37 | Deep | Jun 15, 2013 |
| L | Ken Hasegawa18-6-1 | Decision | Unanimous | R2 | 5:00 | Deep | Feb 16, 2013 |
| L | Hirohide Fujinuma | KO/TKO | Doctor Stoppage | R2 | 4:14 | Deep | Dec 8, 2012 |
| L | Jae Woong Yoon5-7 | Decision | Majority | R2 | 5:00 | Deep | Sep 29, 2012 |
| W | Atsushi Yamada | Decision | Unanimous | R2 | 5:00 | Deep | Aug 18, 2012 |
| W | Jong Wang Kim13-23 | Submission | Scarf Hold | R1 | 0:46 | Deep | Jun 24, 2012 |
| L | Hirohide Fujinuma | KO/TKO | Punches | R1 | 1:20 | Deep | Feb 18, 2012 |
| W | KO/TKO | Punch | R1 | 1:38 | Deep | Dec 16, 2011 | |
| L | Ken Hasegawa18-6-1 | Decision | Unanimous | R2 | 5:00 | Deep | Oct 29, 2011 |
| L | Levan Razmadze | KO/TKO | Punches | R1 | 3:21 | Deep | Jun 24, 2011 |
| W | Mamoru Nakamura | KO/TKO | Punches | R1 | 0:53 | Deep | Apr 22, 2011 |
| L | Hideki Sekine14-8 | KO/TKO | Punches | R2 | 2:38 | Deep | Dec 11, 2010 |
| L | Kazuhisa Tazawa7-2-1 | KO/TKO | Punches | R1 | 0:49 | Deep | Jul 3, 2010 |
| L | Baru Harn1-2 | Decision | Unanimous | R2 | 5:00 | Astra | Apr 25, 2010 |
| W | Ryota Kitamura | Submission | Scarf Hold Armlock | R1 | 2:08 | Deep | Jan 24, 2010 |
| L | Yusuke Kawaguchi18-13 | KO/TKO | Corner Stoppage | R3 | 1:27 | Deep | Oct 10, 2009 |
| W | Tokuzo Tokuzo | Submission | Scarf Hold | R1 | 1:04 | Deep | Jun 28, 2009 |
| W | Katsumi Yamada | Submission | Scarf Hold | R1 | 0:19 | Deep | Apr 16, 2009 |
| W | Ken Orihashi8-7-1 | KO/TKO | Punch | R1 | 3:13 | Deep | Dec 22, 2008 |
| L | Shunji Kosaka | KO/TKO | Punches | R1 | 3:30 | Deep | Oct 23, 2008 |
| W | Nobuyoshi Takahara | Submission | Straight Armbar | R1 | 1:41 | Deep | Jul 27, 2008 |
| L | Yusuke Kawaguchi18-13 | KO/TKO | Punches | R1 | 2:07 | Deep | Oct 9, 2007 |
| L | Yusuke Sakashita12-5 | Decision | Unanimous | R2 | 5:00 | Deep | Jul 8, 2007 |
| L | Minoru Kato | KO/TKO | Head Kick and Punches | R1 | 2:00 | Deep | Dec 20, 2006 |
| W | Takanori Kuno0-2 | KO/TKO | Punches | R1 | 0:57 | Deep | Oct 10, 2006 |
| W | Soichi Nishida5-10-1 | KO/TKO | Punches | R1 | 1:14 | Deep | Jun 18, 2006 |
Non-UFC bouts (regional/other promotions) and Dana White’s Contender Series — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.