Tatsuya Onishi boxer
- bouts
- 10
- won
- 6
- lost
- 3
- draw
- 1
- Status
- inactive
- Division
- flyweight
- Debut
- 2000-10-25
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2004-04-05 | Yusuke Imamiya | WWWLLL | Korakuen Hall | LOST Split-decision |
| 2004-01-26 | Kazunori Yuda | LLWL | Korakuen Hall | WIN Unanimous decision |
| 2003-10-01 | Mio Mizokami | LWDWWL | Korakuen Hall | WIN Unanimous decision |
| 2003-04-08 | Yosuke Koike | WWLLWW | Korakuen Hall | WIN Technical knockout |
| 2002-10-10 | Akihiro Sanada | LWWWL | Korakuen Hall | WIN |
| 2002-04-05 | Isao Yukimura | LW | Korakuen Hall | LOST Technical knockout |
| 2002-02-02 | Yuimon Otani | WW | Korakuen Hall | WIN Technical knockout |
| 2001-10-20 | Toru Ishikawa | L | Korakuen Hall | DRAW |
| 2001-07-23 | Yoshihiro Irei | WWWW | LOST Points |
|
| 2000-10-25 | Koji Nakazawa | debut | WIN KO |