Kazumasa Kobayashi boxeador
- luta
- 19
- vitória
- 10
- derrota
- 8
- empate
- 1
- Estado
- active
- divisão
- lightweight
- Estreia
- 2005-12-22
- Altura
- 5′ 11″/180cm
- Alcance
- -
- Idade
- 35
- Born
- 1983-03-13
- Death
- -
- Nascimento
- Japan
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| Data | Adversário | Últimos resultados dos adversários | Lugar | Resultado |
|---|---|---|---|---|
| 2018-12-13 | Shuichiro Yoshino | WWWWWW | Korakuen Hall | LOST Technical knockout |
| 2018-05-20 | Noriyoshi Taki | WDLWWL | FujisanMesse, Fuji | WIN Technical knockout |
| 2017-11-20 | Daiki Ichikawa | LLWWWL | Korakuen Hall | WIN Split-decision |
| 2017-06-19 | Tomoya Yamada | WLWLDW | Korakuen Hall | LOST Technical knockout |
| 2015-12-27 | Kazuya Nakano | WLWLDL | Shinjuku FACE | LOST Unanimous decision |
| 2014-12-23 | Kota Tokunaga | LWWWWW | KBS Hall, Kyoto | LOST Unanimous decision |
| 2014-02-01 | Masanobu Nakazawa | WWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2013-08-12 | Shoji Kawase | WLWWLW | Korakuen Hall | LOST Unanimous decision |
| 2013-02-20 | Michiya Sato | LLWWDL | Korakuen Hall | DRAW Split-decision |
| 2012-07-12 | Takashi Inagaki | WDLWLW | Korakuen Hall | LOST Unanimous decision |
| 2011-10-10 | Yoshinori Kanzaki | WLLWWW | Korakuen Hall | WIN Majority decision |
| 2011-07-01 | Kentaro Shoji | WLWWLL | Korakuen Hall | WIN Technical knockout |
| 2010-05-26 | Tiger Morimachi | LWWLLL | Korakuen Hall | WIN Technical knockout |
| 2009-08-04 | Nobuya Kasai | WLDLW | Korakuen Hall | WIN Unanimous decision |
| 2009-06-24 | Tetsuto Sebiyo Tonomura | WDWLLL | Korakuen Hall | WIN Technical knockout |
| 2006-11-20 | Naoya Konuma | WWW | Korakuen Hall | LOST Unanimous decision |
| 2006-06-14 | Tomohisa Tagawa | LLDLW | Korakuen Hall | WIN Unanimous decision |
| 2006-02-26 | Kenzo Akitani | debut | Pacifico, Yokohama | WIN KO |
| 2005-12-22 | Keiji Iwase | debut | Korakuen Hall | WIN Technical knockout |