Sergio Vallejos boxer
- bouts
- 12
- won
- 2
- lost
- 8
- draw
- 2
- Status
- inactive
- Division
- super featherweight
- Debut
- 1975-09-26
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Argentina
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1981-07-17 | Pablo Lencina | LLDLLL | Reconquista | WIN KO |
| 1979-08-17 | Hugo Roberto Villarruel | DLLWWD | Arrufo | LOST Technical knockout |
| 1979-05-24 | Demetrio Ibarra | LLLLLW | Baradero | LOST Corner retirement |
| 1977-07-15 | Pedro Gabriel Sanchez | WWW | Rosario | LOST Points |
| 1977-05-06 | Pedro Gabriel Sanchez | W | Rosario | LOST Technical knockout |
| 1976-10-09 | Hector Oscar Ferreira | debut | General Lagos | DRAW Points |
| 1976-09-03 | Pablo Lencina | WLWLW | Reconquista | LOST Corner retirement |
| 1976-07-23 | Modesto Gomez | WDWDWW | Salta | LOST KO |
| 1976-05-28 | Carlos Reyes Sosa | DW | Villa Maria | LOST Points |
| 1976-04-23 | Carlos Reyes Sosa | debut | Villa Maria | DRAW Points |
| 1976-03-05 | Rodolfo Calderolli | WLLLWW | Rafaela | LOST Points |
| 1975-09-26 | Pablo Lencina | W | Reconquista | WIN Corner retirement |