Masao Yamanaka boxer
- bouts
- 3
- won
- 1
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 1957-08-02
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1957-09-24 | Teruo Muraoka | WLLLWL | Osaka | WIN Technical knockout |
| 1957-08-09 | Jiro Kanazawa | WLWLWD | Bunka Hall, Osaka | LOST Points |
| 1957-08-02 | Yoshimi Matsutani | WWWLLW | Osaka | LOST Points |