Hiroyuki Koshiba boxer
- bouts
- 3
- won
- 0
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- super bantamweight
- Debut
- 2000-10-27
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2003-05-15 | Kenji Fujikawa | LLWWL | Korakuen Hall | LOST Technical knockout |
| 2002-04-11 | Akihiro Hoshino | WLLWL | Korakuen Hall | LOST Technical knockout |
| 2000-10-27 | Takayuki Takeshita | WLW | LOST Technical knockout |