Koshinmaru Saito boxer
- bouts
- 37
- won
- 24
- lost
- 11
- draw
- 2
- Status
- active
- Division
- super welterweight
- Debut
- 2001-05-14
- Height
- 5′ 7½″/171cm
- Reach
- -
- Age
- 40
- Born
- 1979-02-15
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2021-07-26 | Mikio Sakai | WWW | Korakuen Hall | WIN Unanimous decision |
| 2018-10-12 | Hironobu Matsunaga | WWWWWW | Korakuen Hall | LOST KO |
| 2018-05-11 | Niwat Kongkan | WWWLWL | Korakuen Hall | WIN Unanimous decision |
| 2017-04-25 | Takeshi Inoue | WWWWWW | Korakuen Hall | LOST Technical knockout |
| 2016-07-31 | Takayuki Hosokawa | WWWDWW | Sumiyoshi Ward Center, Osaka | DRAW Majority decision |
| 2016-06-09 | Peerapat Phatphak | L | Korakuen Hall | WIN Technical knockout |
| 2015-12-27 | Yuki Nonaka | WWWWWD | Abeno Ward Center, Osaka | LOST Unanimous decision |
| 2015-10-12 | Takehiro Shimokawara | WLWDLL | Korakuen Hall | WIN Technical knockout |
| 2015-06-08 | Koki Koshikawa | WWWW | Korakuen Hall | WIN Unanimous decision |
| 2014-12-17 | Arnel Tinampay | LLWWWL | Korakuen Hall | LOST Technical knockout |
| 2014-07-28 | Suyon Takayama | WWWWWW | Korakuen Hall | LOST Majority decision |
| 2014-02-28 | Yuichi Ideta | DLLLLL | Korakuen Hall | WIN Technical knockout |
| 2013-07-30 | Shusaku Fujinaka | WWWLDW | Korakuen Hall | WIN |
| 2012-12-21 | Suyon Takayama | WLWWWW | Korakuen Hall | LOST Unanimous decision |
| 2012-08-06 | Yusuke Nakajima | LLLWWL | Korakuen Hall | WIN KO |
| 2012-03-27 | Akinori Watanabe | LWWWWW | Korakuen Hall | LOST Technical knockout |
| 2011-08-27 | Kazukaze Yamakawa | WWWLWW | Korakuen Hall | WIN Unanimous decision |
| 2011-04-05 | Makoto Mori | WWWLLL | Korakuen Hall | WIN Technical knockout |
| 2010-12-13 | Yasuhiro Okawa | DLWLWW | Korakuen Hall | WIN Split-decision |
| 2010-08-26 | Daisuke Kato | LWWLLW | Korakuen Hall | WIN Technical knockout |
| 2010-03-11 | Ryosuke Hirai | DLWWLL | Korakuen Hall | WIN Unanimous decision |
| 2009-12-16 | Shota Haruyama | LLLWLL | Korakuen Hall | WIN Technical knockout |
| 2009-06-06 | Daisuke Nakagawa | WWWWWW | Korakuen Hall | LOST Technical knockout |
| 2008-11-10 | Tsuyoshi Kamiishi | DWWLLW | Korakuen Hall | WIN Unanimous decision |
| 2008-08-14 | Kentaro Yoshida | LLWLDW | Korakuen Hall | WIN Unanimous decision |
| 2008-04-03 | Hiroshi Yamaguchi | WWWLWL | Korakuen Hall | DRAW |
| 2007-09-10 | Yoshihisa Tonimura | WWDWLL | Korakuen Hall | WIN Unanimous decision |
| 2005-06-26 | Yoshiharu Ikeda | LWWWLW | Differ Ariake | WIN Technical knockout |
| 2004-06-29 | Luiz Okamoto | WWWWWL | Korakuen Hall | WIN KO |
| 2004-04-06 | Tsuyoshi Oyama | WWWLW | Korakuen Hall | WIN Technical knockout |
| 2003-08-28 | Keiichi Arai | LWWWLW | Korakuen Hall | LOST Unanimous decision |
| 2003-02-01 | Daisuke Kato | WWWLWL | Korakuen Hall | WIN Unanimous decision |
| 2002-09-26 | Keiichi Arai | WLWW | Korakuen Hall | LOST Unanimous decision |
| 2002-07-24 | Tatsuyuki Uehara | WLW | Korakuen Hall | WIN Technical knockout |
| 2001-12-17 | Ryota Asano | debut | Korakuen Hall | WIN Points |
| 2001-09-10 | Toyoshi Ozawa | debut | Korakuen Hall | WIN KO |
| 2001-05-14 | Hajime Kakimoto | debut | Korakuen Hall | WIN Technical knockout |