Winston Sierra boxeur
- combats
- 12
- gagnés
- 3
- perdus
- 9
- match nul
- 0
- Situation
- inactive
- Division
- featherweight
- Début
- 1993-08-28
- Taille
- -
- Allonge
- -
- âge
- -
- Né
- -
- Décès
- -
- Nationalité
- Panama
| Date | Adversaire | Derniers résultats des adversaires | Lieu | Result |
|---|---|---|---|---|
| 1998-09-18 | Vicente Mosquera | WWWWW | Gimnasio Nuevo Panama, Panama City | LOST Unanimous decision |
| 1998-05-16 | Florentino Campbell | WWWWWW | Arena Panama Al Brown, Colon City | LOST Technical knockout |
| 1998-04-18 | Melquiades Mojica | WLWLWW | Gimnasio Kiwanis, Panama City | LOST |
| 1997-10-04 | Melquiades Mojica | WLWL | Gimnasio Chino-Panameno, Panama City | LOST Points |
| 1997-09-20 | Franklyn Valencia | debut | Gimnasio Kiwanis, Panama City | WIN KO |
| 1997-02-28 | Ubaldino Gutierrez | LDWWWL | Gimnasio Kiwanis, Panama City | LOST Technical knockout |
| 1996-11-03 | Hermogenes Mosquera | LWLLLL | Gimnasio de los Leones, Panama City | WIN KO |
| 1996-08-24 | Ubaldino Gutierrez | LLDWW | Hipodromo Presidente Remon, Panama City | LOST KO |
| 1996-04-20 | Fabian Salazar | LLLLWW | Hotel Washington, Colon City | LOST Points |
| 1994-02-05 | Reinhold Campa | WLWWWW | Gimnasio Nuevo Panama, Panama City | LOST Points |
| 1993-12-28 | Reinhold Campa | WLWWW | Gimnasio Nuevo Panama, Panama City | LOST Points |
| 1993-08-28 | Johnny Santos | debut | Gimnasio Nuevo Panama, Panama City | WIN Technical knockout |