Kazuhiro Koya boxer
- bouts
- 7
- won
- 3
- lost
- 3
- draw
- 1
- Status
- inactive
- Division
- lightweight
- Debut
- 2003-02-20
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2004-11-14 | Cho Nishimura | debut | Zepp, Sendai | LOST Unanimous decision |
| 2004-05-26 | Tsuneyoshi Hoshikoshi | WLLWWL | Korakuen Hall | LOST KO |
| 2004-02-18 | Shunsuke Ikeda | LWWLWL | Korakuen Hall | WIN Majority decision |
| 2003-12-12 | Taro Nakagawa | WL | Korakuen Hall | WIN Majority decision |
| 2003-09-30 | Masaru Hashimoto | W | Korakuen Hall | DRAW Points |
| 2003-04-21 | Daisaku Fujino | DW | Korakuen Hall | LOST Technical knockout |
| 2003-02-20 | Yuki Hoshiyama | debut | Korakuen Hall | WIN KO |