Masayuki Koguchi boxer
- bouts
- 29
- won
- 19
- lost
- 7
- draw
- 3
- Status
- inactive
- Division
- lightweight
- Debut
- 2000-10-11
- Height
- 5′ 7½″/172cm
- Reach
- -
- Age
- -
- Born
- 1977-08-27
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2011-04-25 | Tsuyoshi Ozawa | WLWLWW | Korakuen Hall | DRAW Majority decision |
| 2010-06-05 | Daiki Kaneko | WWWWDW | Korakuen Hall | LOST Unanimous decision |
| 2009-10-10 | Takashi Miura | LWWWDW | Yoyogi #2 Gymnasium | LOST Unanimous decision |
| 2009-07-09 | Mitsugu Kudo | WLWLWL | Korakuen Hall | WIN Technical knockout |
| 2009-04-06 | Hiroshi Katayama | WWLWLL | Korakuen Hall | WIN Technical knockout |
| 2008-12-01 | Yuta Kimura | LLWLWL | Korakuen Hall | LOST Unanimous decision |
| 2008-07-09 | Takeyuki Kamata | WWLWWW | Korakuen Hall | WIN Unanimous decision |
| 2008-03-04 | Daisuke Ugajin | LLWWLL | Korakuen Hall | WIN Unanimous decision |
| 2007-12-03 | Tomoya Endo | WWWLLL | Korakuen Hall | WIN Corner retirement |
| 2007-07-04 | Morito Yoshikawa | LWWLWW | Korakuen Hall | WIN Technical knockout |
| 2007-03-31 | Ryoichi Matsumoto | WLWWLW | Korakuen Hall | WIN Unanimous decision |
| 2006-12-06 | Kenya Kusaka | WWLL | Korakuen Hall | WIN Unanimous decision |
| 2006-09-05 | Tsubasa Shiono | WWWLWW | Korakuen Hall | WIN Unanimous decision |
| 2006-04-24 | Daichi Shibata | LDWWWL | Korakuen Hall | WIN |
| 2005-12-13 | Daichi Shibata | WLDWWW | Korakuen Hall | WIN Technical knockout |
| 2005-09-18 | Manabu Suzuki | WWDWWL | Capio, Tsukuba | WIN |
| 2004-12-02 | Atsushi Aita | WWLWWW | Korakuen Hall | DRAW Points |
| 2004-09-13 | Yutaka Sato | DWLWLL | Korakuen Hall | WIN Unanimous decision |
| 2004-03-23 | Atsushi Aita | WWWWWL | Korakuen Hall | LOST Majority decision |
| 2004-01-13 | Shingo Kuniyoshi | WWWLWW | Korakuen Hall | WIN Unanimous decision |
| 2003-10-05 | Tomoya Matsuda | WWWWLW | Event Plaza, Toyama | LOST Unanimous decision |
| 2003-05-26 | Tetsushi Asayama | WLLWLL | Korakuen Hall | DRAW Points |
| 2002-09-27 | Kazuyoshi Kumano | WWWWW | Korakuen Hall | LOST Split-decision |
| 2002-08-01 | Masaya Ogawa | LWW | Korakuen Hall | WIN Majority decision |
| 2002-05-31 | Yasuhiro Shindo | WWW | Korakuen Hall | WIN Split-decision |
| 2002-04-15 | Yoshihiro Fujita | WW | Korakuen Hall | WIN KO |
| 2001-06-17 | Takeo Yamamoto | debut | Hirakata | WIN Points |
| 2000-12-04 | Masaya Ogawa | L | Soka | LOST Points |
| 2000-10-11 | Kentaro Kishida | debut | Arena, Yokohama | WIN KO |