Yutaka Koyama boxer
- bouts
- 3
- won
- 2
- lost
- 0
- draw
- 1
- Status
- inactive
- Division
- super bantamweight
- Debut
- 2001-08-16
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2002-10-07 | Hiroshi Kurata | WW | Prefectural Gymnasium, Osaka | WIN KO |
| 2002-06-02 | Motoo Mizota | LLLL | Azalea Taisho, Osaka | DRAW Points |
| 2001-08-16 | Tomonari Sano | debut | Prefectural Gymnasium, Osaka | WIN KO |