Masumi Yamaguchi boxer
- bouts
- 17
- won
- 10
- lost
- 5
- draw
- 2
- Status
- inactive
- Division
- welterweight
- Debut
- 1987-06-27
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1961-04-24
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1993-10-17 | Yung-Yong Lee | LLLLLL | Kurume | WIN Points |
| 1993-05-10 | Hitoshi Kamiyama | WWWWWL | LOST Technical knockout |
|
| 1992-12-14 | Jun Rosal | WWLLLL | Korakuen Hall | WIN KO |
| 1992-09-06 | Chang-Taek Kim | DWWWWL | Kurume | LOST Technical knockout |
| 1992-05-23 | Takashi Kamikaze | LLLDLL | Kumamoto | WIN KO |
| 1990-12-10 | Hitoshi Kamiyama | WWWWWW | Korakuen Hall | LOST Technical knockout |
| 1990-09-02 | Koichi Tateno | DWWWWL | Kurume | WIN KO |
| 1989-12-17 | Shinji Shiomi | WWWWWW | Kitakyushu | WIN Technical knockout |
| 1989-08-01 | Tatsuhiro Kawabata | LWLWWL | Korakuen Hall | WIN KO |
| 1989-05-30 | Hiroyuki Yoshino | WWWWWW | Korakuen Hall | LOST KO |
| 1989-01-22 | Fumihiko Kimura | W | Korakuen Hall | LOST Points |
| 1988-08-27 | Tadafumi Miura | LLWWLL | Kurume | DRAW Points |
| 1988-05-22 | Hiroyuki Oka | LLDL | Budokan, Tagawa | WIN Technical knockout |
| 1988-01-31 | Kenji Tagawa | debut | Osaka-Jo Hall, Osaka | WIN KO |
| 1987-11-25 | Shunichi Eto | debut | Amagi | WIN Points |
| 1987-09-05 | Hiroyuki Oka | LLD | Kurume | WIN KO |
| 1987-06-27 | Hiroyuki Oka | LL | Nakatsu | DRAW Points |