Kazumasa Kobayashi boxer
- bouts
- 3
- won
- 2
- lost
- 1
- draw
- 0
- Status
- inactive
- Division
- light flyweight
- Debut
- 2005-08-15
- Height
- 5′ 4″/162cm
- Reach
- -
- Age
- -
- Born
- 1977-03-06
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2006-10-22 | Tetsushi Kondo | debut | Sanyo Heights, Kurashiki | WIN Majority decision |
| 2006-09-03 | Yukinori Kawaguchi | debut | Saty Hall, Sakaide | WIN Unanimous decision |
| 2005-08-15 | Koji Itagaki | L | Prefectural Gymnasium, Hiroshima | LOST Technical knockout |