Ryusuke Kumagai boxeador
- combates
- 11
- ganados
- 6
- perdidos
- 4
- empates
- 1
- Estado
- inactive
- División
- super featherweight
- Debut
- 2004-05-30
- Altura
- 5′ 9½″/176cm
- Alcanza
- -
- Edad
- -
- Nacimiento
- 1980-09-11
- Muerte
- -
- Nacionalidad
- Japan
| Fecha | Oponente | Resultados últimos oponentes | Lugar | Resultado |
|---|---|---|---|---|
| 2009-11-08 | Makoto Sakai | WWLLWW | Australian Memorial Hall, Yokkaichi | LOST KO |
| 2009-05-10 | Shozo Higashi | LWLWWL | Australian Memorial Hall, Yokkaichi | WIN Technical knockout |
| 2008-11-09 | Weerawat Sukchaisri | W | City Gymnasium, Obama | WIN KO |
| 2007-12-22 | Yuichi Kubota | debut | City Gymnasium, Kuwana | WIN KO |
| 2007-11-04 | Akio Morita | LL | Kiramekiminato Hall, Tsuruga | WIN Technical knockout |
| 2006-08-06 | Tatsuya Yasuda | LW | Aioi Hall, Kariya | LOST Technical knockout |
| 2005-05-01 | Yasumasa Eguchi | LWWLDW | City Hall, Nagoya | LOST Unanimous decision |
| 2005-03-13 | Tetsunori Hashimoto | WLL | Event Plaza, Toyama | WIN KO |
| 2005-01-16 | Tsuyoshi Adachi | WWLW | Central Gym, Shimada | LOST Unanimous decision |
| 2004-10-17 | Tetsunori Hashimoto | WL | Sangyo Hall, Kanazawa | WIN KO |
| 2004-05-30 | Seiji Shibuya | LDWLLL | Sangyo Hall, Kanazawa | DRAW Points |