Mamoru Yamaguchi
UFC Debut
Record
Streak
L3
Age
Date of birth
- Fighting out of
- Kawasaki, Kanagawa
- Born
- Japan
- Weight class
- Flyweight
- Height
- 5'4" · 163 cm
Before the UFC
Mamoru Yamaguchi 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
StrongOpponents' combined record
571-381-94
.600 win rate
Winning-record opponents
27 of 44
carried winning pro records
Pro bouts faced
49
44 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 49 bouts · 9 promotions · wins by 11 KO · 4 sub · 16 decShooto · Pancrase · Vale Tudo Japan · KOTC · Deep +4
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| L | Toru Ogawa14-7 | Decision | Unanimous | R3 | 5:00 | Pancrase | May 26, 2019 |
| L | Yuya Wakamatsu20-7 | KO/TKO | Punches | R2 | 0:39 | Pancrase | Jul 1, 2018 |
| L | Senzo Ikeda13-4-1 | Decision | Unanimous | R5 | 5:00 | Pancrase | Aug 20, 2017 |
| W | Ryuichi Miki21-16-4 | Decision | Split | R5 | 5:00 | Pancrase | Mar 12, 2017 |
| W | Luis Alberto Nogueira23-13-2 | Decision | Split | R3 | 5:00 | Pancrase | Oct 2, 2016 |
| W | Senzo Ikeda13-4-1 | Decision | Split | R3 | 5:00 | Pancrase | Apr 24, 2016 |
| L | Yuki Yasunaga | Decision | Split | R3 | 5:00 | Pancrase | Dec 13, 2015 |
| W | Yusuke Kitago | Decision | Split | R3 | 5:00 | Pancrase | Aug 9, 2015 |
| D | Kosuke Suzuki | Draw | Split | R3 | 5:00 | Shooto | May 3, 2015 |
| W | Yosuke Saruta21-14-3 | KO/TKO | Doctor Stoppage | R2 | 0:25 | Vale Tudo Japan | Oct 4, 2014 |
| L | Czar Sklavos13-5 | Submission | Rear-Naked Choke | R1 | 1:28 | Vale Tudo Japan | Feb 23, 2014 |
| D | Yoshiro Maeda40-19-3 | Draw | Majority | R3 | 5:00 | Deep | Oct 20, 2013 |
| L | Mikihito Yamagami | Decision | Majority | R3 | 5:00 | Vale Tudo Japan | Jun 22, 2013 |
| L | Darrell Montague13-5 | Decision | Split | R3 | 5:00 | Vale Tudo Japan | Dec 24, 2012 |
| L | Jussier Formiga24-8 | Decision | Unanimous | R3 | 5:00 | TPF 10 | Aug 5, 2011 |
| W | Kevin Dunsmoor11-4 | KO/TKO | Punch | R2 | 4:03 | TPF 9 | May 6, 2011 |
| W | Fumihiro Kitahara | KO/TKO | Head Kick | R1 | 2:33 | Shooto | Nov 19, 2010 |
| W | Greg Guzman14-8 | KO/TKO | Elbows | R2 | 2:21 | KOTC | Aug 5, 2010 |
| W | Frank Baca16-5 | Submission | Rear-Naked Choke | R2 | 1:54 | KOTC | Jan 30, 2010 |
| W | Kiyotaka Shimizu25-16-3 | Decision | Majority | R3 | 5:00 | Shooto | Nov 23, 2009 |
| W | Jesse Taitano7-9-2 | KO/TKO | Punches | R1 | 4:41 | VTJ 2009 | Oct 30, 2009 |
| L | Shinichi Kojima14-7-5 | Submission | Guillotine Choke | R3 | 3:42 | Shooto | Jul 18, 2008 |
| W | Masaaki Sugawara18-11-1 | Decision | Unanimous | R3 | 5:00 | Shooto | Mar 28, 2008 |
| W | Yuki Shojo17-9-2 | Decision | Unanimous | R3 | 5:00 | Shooto | Feb 23, 2008 |
| L | Yasuhiro Urushitani21-8-6 | Decision | Unanimous | R3 | 5:00 | Shooto | Sep 22, 2007 |
| W | Yusei Shimokawa10-11-1 | Decision | Unanimous | R3 | 5:00 | Shooto | Jun 2, 2007 |
| L | Shinichi Kojima14-7-5 | Submission | Rear-Naked Choke | R1 | 1:38 | Shooto | Oct 14, 2006 |
| W | KO/TKO | Body Kick and Punches | R1 | 2:14 | Shooto | Sep 8, 2006 | |
| W | Setsu Iguchi8-3-1 | KO/TKO | Doctor Stoppage | R1 | 2:45 | Shooto | May 12, 2006 |
| D | Shinichi Kojima14-7-5 | Draw | Majority | R3 | 5:00 | Shooto | Mar 24, 2006 |
| W | Daiji Takahashi8-11-4 | Decision | Unanimous | R3 | 5:00 | Shooto | Dec 17, 2005 |
| W | Pat Seidel3-3 | Submission | Rear-Naked Choke | R2 | 1:35 | Shooto | Sep 23, 2005 |
| W | KO/TKO | Head Kick | R1 | 1:36 | Shooto | May 4, 2005 | |
| W | Junji Ikoma14-14-6 | Decision | Unanimous | R3 | 5:00 | Shooto | Jan 29, 2005 |
| D | Robson Moura2-1-1 | Draw | — | R3 | 5:00 | Shooto | Sep 26, 2004 |
| W | Hiroaki Yoshioka6-10-2 | KO/TKO | Knee to the Body | R3 | 4:41 | Shooto | May 3, 2004 |
| W | Yasuhiro Urushitani21-8-6 | Decision | Unanimous | R3 | 5:00 | Shooto | Dec 14, 2003 |
| W | Homare Kuboyama7-7-1 | Decision | Unanimous | R3 | 5:00 | Shooto | Mar 18, 2003 |
| L | Robson Moura2-1-1 | Decision | Unanimous | R3 | 5:00 | Shooto | Sep 16, 2002 |
| W | Hiroaki Yoshioka6-10-2 | Decision | Unanimous | R3 | 5:00 | Shooto | Apr 14, 2002 |
| L | Masahiro Oishi31-26-9 | Submission | Triangle Armbar | R1 | 1:44 | Shooto | Nov 25, 2001 |
| W | Gildo Lima4-5 | Submission | Armbar | R1 | 3:57 | Shooto | Mar 2, 2001 |
| W | Jin Akimoto12-13-4 | Decision | Unanimous | R3 | 5:00 | Shooto | Dec 17, 2000 |
| W | Yoshinobu Ota4-6-3 | KO/TKO | Knee | R3 | 2:21 | Shooto | Aug 27, 2000 |
| D | Masaru Gokita1-5-2 | Draw | Unanimous | R2 | 5:00 | Shooto | Mar 17, 2000 |
| W | Baret Yoshida6-6-1 | KO/TKO | Punches | R3 | 1:18 | SB 15 | Dec 7, 1999 |
| W | Ryan Diaz13-14 | Submission | Armbar | R2 | 3:35 | Shooto | Nov 4, 1999 |
| W | Jin Akimoto12-13-4 | Decision | Majority | R2 | 5:00 | Shooto | Sep 5, 1999 |
| W | Shuichiro Katsumura11-9-3 | Decision | Unanimous | R2 | 5:00 | Shooto | Jul 16, 1999 |
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.