Norimasa Koiwai boxer
- bouts
- 15
- won
- 7
- lost
- 8
- draw
- 0
- Status
- inactive
- Division
- bantamweight
- Debut
- 2001-09-04
- Height
- 5′ 6″/168cm
- Reach
- -
- Age
- -
- Born
- 1979-08-12
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2008-08-25 | Kohei Natori | LWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2006-05-06 | Shota Terabatake | WWWWWW | Korakuen Hall | LOST Technical knockout |
| 2005-10-01 | Riki Shinpo | WWWWLW | Korakuen Hall | LOST Majority decision |
| 2005-05-17 | Sho Suzuki | WWWWDL | Korakuen Hall | LOST Majority decision |
| 2005-01-24 | Shinichiro Yamaguchi | WWWWLW | Korakuen Hall | LOST Split-decision |
| 2004-08-13 | Akihiro Nomura | WLDWLW | Korakuen Hall | LOST Majority decision |
| 2004-03-25 | Tsutomu Yamauchi | WWWLLL | Korakuen Hall | WIN Technical knockout |
| 2003-12-01 | Shinichiro Yamaguchi | WWWLWW | Korakuen Hall | LOST Technical knockout |
| 2003-08-12 | Ryuji Ishida | WLWWLL | Korakuen Hall | WIN Technical knockout |
| 2003-03-25 | Daisuke Fukui | WLLL | Korakuen Hall | WIN Unanimous decision |
| 2002-11-11 | Shinya Tagawa | WL | Korakuen Hall | WIN Unanimous decision |
| 2002-06-18 | Takaya Yokosuka | L | Korakuen Hall | WIN Technical knockout |
| 2002-02-12 | Masato Iijima | WL | Korakuen Hall | WIN Majority decision |
| 2001-11-06 | Shinya Tagawa | debut | Korakuen Hall | LOST Points |
| 2001-09-04 | Takayuki Ushimaki | debut | Korakuen Hall | WIN Points |