Ruperto Fermaint boxer
- bouts
- 5
- won
- 0
- lost
- 5
- draw
- 0
- Status
- inactive
- Division
- featherweight
- Debut
- 1945-12-04
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Puerto Rico
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1947-11-10 | Manuel Mercado | WLLD | Sixto Escobar Stadium, San Juan | LOST Points |
| 1946-08-13 | Johnny Kinman | WW | Sixto Escobar Stadium, San Juan | LOST KO |
| 1946-04-12 | Amador Garcia | WLLLLL | Sixto Escobar Stadium, San Juan | LOST Technical knockout |
| 1946-02-05 | Cabo Nito | WDL | Sixto Escobar Stadium, San Juan | LOST KO |
| 1945-12-04 | Battling Gregory | LWLLW | Sixto Escobar Stadium, San Juan | LOST Technical knockout |