Mamoru Yamaguchi
31–13 · 48 recorded bouts · 1999–2019
Mamoru Yamaguchi finished 48% of 31 wins inside the distance — the 25th percentile for flyweight MMA, where the median is 58%. No reach is on record, so this page compares record rather than measurements.
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 64″ (162.6 cm) | |
| Stance | — | |
| Division | Flyweight MMA competed at 2: bantamweight, flyweight — compared here against the last | |
| Peak era | 2000s | |
| Country | Japan |
Wikipedia carries no reach figure for Mamoru Yamaguchi, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
MMA record
31–13
49 bouts on record
Finish rate
48%
of wins ended inside the distance — flyweight MMA median 58%, 25th percentile
The career, bout by bout
48 recorded bouts from 1999 to 2019. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
21y
1999–2019
Longest unbeaten run
8
without a loss — draws do not break it
Busiest year
1999
4 bouts
Recorded bouts
48
48 with a date
Fights
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 2019 | L | Toru Ogawa | Decision | 3 |
| 2018 | L | Yuya Wakamatsu | KO/TKO | 2 |
| 2017 | L | Senzo Ikeda | Decision | 5 |
| 2017 | W | Ryuichi Miki | Decision | 5 |
| 2016 | W | Luis Nogueira | Decision | 3 |
| 2016 | W | Senzo Ikeda | Decision | 3 |
| 2015 | L | Yuki Yasunaga | Decision | 3 |
| 2015 | W | Yusuke Kitago | Decision | 3 |
| 2015 | D | Kosuke Suzuki | Draw | 3 |
| 2014 | W | Yosuke Saruta | KO/TKO | 2 |
| 2014 | L | Czar Sklavos | Submission | 1 |
| 2013 | D | Yoshiro Maeda | Draw | 3 |
| 2013 | L | Mikihito Yamagami | Decision | 3 |
| 2012 | L | Darrell Montague | Decision | 3 |
| 2011 | L | Jussier da Silva | Decision | 3 |
| 2011 | W | Kevin Dunsmoor | KO/TKO | 2 |
| 2010 | W | Fumihiro Kitahara | KO/TKO | 1 |
| 2010 | W | Greg Guzman | KO/TKO | 2 |
| 2010 | W | Frank Baca | Submission | 2 |
| 2009 | W | Kiyotaka Shimizu | Decision | 3 |
| 2009 | W | Jesse Taitano | KO/TKO | 1 |
| 2008 | L | Shinichi Kojima | Submission | 3 |
| 2008 | W | Masaaki Sugawara | Decision | 3 |
| 2008 | W | Yuki Shoujou | Decision | 3 |
| 2007 | L | Yasuhiro Urushitani | Decision | 3 |
| 2007 | W | Yusei Shimokawa | Decision | 3 |
| 2006 | L | Shinichi Kojima | Submission | 1 |
| 2006 | W | Erikas Suslovas | KO/TKO | 1 |
| 2006 | W | Setsu Iguchi | KO/TKO | 1 |
| 2005 | W | Daiji Takahashi | Decision | 3 |
| 2005 | W | Pat Seidel | Submission | 2 |
| 2005 | W | Stonnie Dennis | KO/TKO | 1 |
| 2005 | W | Junji Ikoma | Decision | 3 |
| 2004 | D | Robson Moura | Draw | 3 |
| 2004 | W | Hiroaki Yoshioka | KO/TKO | 3 |
| 2003 | W | Yasuhiro Urushitani | Decision | 3 |
| 2003 | W | Homare Kuboyama | Decision | 3 |
| 2002 | L | Robson Moura | Decision | 3 |
| 2002 | W | Hiroaki Yoshioka | Decision | 3 |
| 2001 | L | Masahiro Oishi | Submission | 1 |
| 2001 | W | Gildo Lima | Submission | 1 |
| 2000 | W | Jin Akimoto | Decision | 3 |
| 2000 | W | Yoshinobu Ota | KO/TKO | 3 |
| 2000 | D | Masaru Gokita | Draw | 2 |
| 1999 | W | Baret Yoshida | KO/TKO | 3 |
| 1999 | W | Ryan Diaz | Submission | 2 |
| 1999 | W | Jin Akimoto | Decision | 2 |
| 1999 | W | Shuichiro Katsumura | Decision | 2 |
7 of these opponents have their own page here.
Records in more than one sport
Every incumbent database is siloed by sport. Mamoru Yamaguchi competed in 2, so the records sit together here.
| Discipline | Won | Lost | By KO |
|---|---|---|---|
| MMA | 31 | 13 | 11 |
| Kickboxing | 4 | 1 | — |
How this is worked out
- Measurements and records are read from the fighter's English Wikipedia infobox; the fight list is parsed from the article's own results table.
- Reach advantage is (reach − height) ÷ height as a percentage, so fighters of different sizes compare directly.
- Percentiles rank this fighter among the 150 flyweight MMA fighters in the dataset — chosen because it is the most specific group of at least 30 that this fighter belongs to.
Reach advantage = (reach − height) ÷ height × 100
Source: Mamoru Yamaguchi on English Wikipedia (CC BY-SA 4.0), as of 2026-07-19. Percentiles and derived figures computed here.