Ryo Kosaka boxer
- bouts
- 22
- won
- 17
- lost
- 4
- draw
- 1
- Status
- active
- Division
- super bantamweight
- Debut
- 2011-02-16
- Height
- 5′ 6″/168cm
- Reach
- -
- Age
- 25
- Born
- 1993-05-01
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2018-12-01 | Jinya Ito | LLWWWL | EDION Arena Osaka, Osaka | WIN Unanimous decision |
| 2018-03-27 | Yusaku Kuga | WLWWWW | Korakuen Hall | LOST Technical knockout |
| 2017-06-24 | Akira Ono | LWWDLW | Central Gym, Kobe | WIN Unanimous decision |
| 2017-03-12 | Morihisa Iju | LWWWWW | Central Gym, Kobe | WIN Unanimous decision |
| 2016-08-28 | Corrales Kawashimo | LWWWLL | Big Rose, Fukuyama | WIN Technical knockout |
| 2016-03-01 | Kosuke Mizuno | LWDWLL | Central Gym, Kobe | WIN Technical knockout |
| 2015-10-13 | Dado Cabintoy | WWWWWL | Central Gym, Kobe | WIN Unanimous decision |
| 2015-07-12 | Nongdear Sor Bangkharu | LLLLLL | Sangyo Koryu Center, Akashi | WIN KO |
| 2015-04-05 | Satoshi Niwa | WWLLLW | Prefectural Gymnasium, Osaka | WIN Unanimous decision |
| 2014-08-22 | Monkey Shuhei | WWDLWL | Central Gym, Kobe | WIN KO |
| 2013-12-15 | Yuta Yasumoto | DWLLLL | Incubation Center, Amagasaki | LOST Technical knockout |
| 2013-09-03 | Riichi Kawase | LLWWDL | Sun Messe Kagawa, Takamatsu | WIN Unanimous decision |
| 2013-05-17 | Shinsuke Ishikawa | LLWWLL | Central Gym, Kobe | WIN Unanimous decision |
| 2013-02-22 | Yuichi Arai | WWWWLL | Central Gym, Kobe | WIN Majority decision |
| 2012-11-02 | Fumio Yoshida | LLLLWW | Central Gym, Kobe | WIN Unanimous decision |
| 2012-08-04 | Hikaru Matsuoka | WD | Bodymaker Colosseum, Osaka | DRAW Split-decision |
| 2012-05-03 | Yuichi Arai | WLLLWW | Incubation Center, Amagasaki | LOST |
| 2011-12-17 | Jun Yamasaki | WWLLD | Central Gym, Kobe | LOST |
| 2011-07-22 | Kazuhiko Yokoyama | WLLL | Prefectural Gymnasium, Osaka | WIN Technical knockout |
| 2011-05-21 | Yasutaka Uehara | LLWLWL | Central Gym, Kobe | WIN Technical knockout |
| 2011-02-16 | Kazuhiro Hirahara | debut | Central Gym, Kobe | WIN Technical knockout |