Masayuki Yokoyama boxer
- bouts
- 3
- won
- 1
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- featherweight
- Debut
- 1980-02-23
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1983-05-12 | Takami Koga | LD | Osaka | LOST KO |
| 1981-01-26 | Hideki Godai | W | Prefectural Gymnasium, Osaka | LOST KO |
| 1980-02-23 | Shigemi Osako | debut | Prefectural Gymnasium, Tokushima City | WIN Points |