Kazuyasu Koi boxer
- bouts
- 7
- won
- 1
- lost
- 6
- draw
- 0
- Status
- inactive
- Division
- super bantamweight
- Debut
- 1999-10-15
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1979-11-26
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2010-01-25 | Motoi Kimura | debut | Korakuen Hall | LOST KO |
| 2001-05-19 | Yoshimitsu Yashiro | debut | Korakuen Hall | LOST KO |
| 2000-10-21 | Fumihiro Karikomi | W | LOST Technical knockout |
|
| 2000-09-02 | Nobuhiro Matsuda | WL | Korakuen Hall | LOST Points |
| 2000-06-03 | Yuichi Tsukagoshi | debut | WIN Points |
|
| 2000-02-02 | Hiroshi Hokuto | D | Korakuen Hall | LOST KO |
| 1999-10-15 | Yusuke Nagano | L | LOST KO |