Koji Maruyama boxer
- bouts
- 4
- won
- 2
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 2000-08-06
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2001-04-08 | Yuki Kobayashi | LW | Zepp, Fukuoka | LOST KO |
| 2000-12-23 | Keisuke Higuchi | LL | Zepp, Fukuoka | WIN Points |
| 2000-10-06 | Yoshihiro Araki | WWWWW | Osaka | LOST Points |
| 2000-08-06 | Wasuke Ono | DW | Nakama | WIN Points |