Koji Kobayashi boxer
- bouts
- 31
- won
- 24
- lost
- 4
- draw
- 3
- Status
- inactive
- Division
- flyweight
- Debut
- 1978-12-12
- Height
- 5′ 7″/170cm
- Reach
- -
- Age
- -
- Born
- 1957-08-27
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1985-08-27 | Yoshiyuki Uchida | WWWWWW | Korakuen Hall | LOST KO |
| 1985-03-05 | Kazuo Katsuma | WLWWWW | Korakuen Hall | LOST Technical knockout |
| 1984-12-01 | Joe Shiranui | LWLLLL | City Gymnasium, Tsuruga | WIN Unanimous decision |
| 1984-10-16 | Kap-Dong Park | WW | Korakuen Hall | WIN Unanimous decision |
| 1984-06-19 | Allan Makitoki | WDLWWW | Korakuen Hall | WIN Majority decision |
| 1984-04-09 | Gabriel Bernal | WWWWWW | Korakuen Hall | LOST KO |
| 1984-01-18 | Frank Cedeno | LWWWWW | Korakuen Hall | WIN Technical knockout |
| 1983-07-07 | Rord Mitsuru | LWLWDW | Kinki University Auditorium, Osaka | WIN Technical knockout |
| 1983-04-19 | Chang-Soo Chung | WWWLLD | Korakuen Hall | WIN Technical knockout |
| 1982-11-05 | Rodrigo Saonoy | LLWDLW | Korakuen Hall | WIN Unanimous decision |
| 1982-09-03 | Jackal Maruyama | LWLLWL | Korakuen Hall | DRAW Points |
| 1982-06-04 | Chong-Chul Park | LWWLDL | Korakuen Hall | WIN Corner retirement |
| 1982-03-06 | Flash Jagdon | WWWWWW | Korakuen Hall | WIN Unanimous decision |
| 1981-11-21 | Phaktai Lipovitan | LWWL | Korakuen Hall | WIN KO |
| 1981-08-04 | Jiro Takada | LLWLLL | Korakuen Hall | WIN Technical knockout |
| 1981-05-10 | Facomron Vibonchai | LWLWL | Korakuen Hall | WIN KO |
| 1981-04-07 | Nobuo Horigome | LLLLLL | Korakuen Hall | WIN KO |
| 1981-02-03 | Fujimi Wada | LLWLLW | Korakuen Hall | WIN KO |
| 1980-12-16 | Hirohisa Iino | LLD | Korakuen Hall | WIN KO |
| 1980-11-08 | Nobuo Horigome | LLLLLL | Korakuen Hall | WIN Points |
| 1980-08-29 | Kazuyoshi Funaki | LLWLWL | Korakuen Hall | WIN KO |
| 1980-04-14 | Yoshiaki Kanda | DWLWDL | Korakuen Hall | WIN Points |
| 1980-02-21 | Jiro Watanabe | WWWWWW | Prefectural Gymnasium, Osaka | LOST KO |
| 1979-12-23 | Hiroyuki Kobayashi | WWWWW | Korakuen Hall | WIN KO |
| 1979-09-21 | Mutsuo Watanabe | DDLWW | Korakuen Hall | WIN Points |
| 1979-07-20 | Koichi Togashi | LL | Korakuen Hall | WIN KO |
| 1979-05-07 | Shinji Takagi | WW | Korakuen Hall | WIN KO |
| 1979-03-23 | Junichi Ota | debut | Korakuen Hall | WIN Points |
| 1979-02-23 | Kiyomi Sato | WLLLLW | Korakuen Hall | DRAW Points |
| 1979-01-04 | Mutsuo Watanabe | debut | Korakuen Hall | DRAW Points |
| 1978-12-12 | Ryutaro Abe | debut | Korakuen Hall | WIN KO |