Sadayoshi Kobayashi boxer
- bouts
- 3
- won
- 0
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- flyweight
- Debut
- 1961-07-13
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1962-09-23 | Katsuo Yachinuma | WWWWWW | LOST Points |
|
| 1961-10-09 | Shinsuke Taniwaki | WWWWWW | City Gymnasium, Toyohashi | LOST Points |
| 1961-07-13 | Seisaku Saito | WWWWWW | LOST Points |