Jack Duffy boxeador
- combates
- 15
- ganados
- 9
- perdidos
- 3
- empates
- 3
- Estado
- inactive
- División
- welterweight
- Debut
- 1935-07-15
- Altura
- -
- Alcanza
- -
- Edad
- -
- Nacimiento
- -
- Muerte
- -
- Nacionalidad
- USA
| Fecha | Oponente | Resultados últimos oponentes | Lugar | Resultado |
|---|---|---|---|---|
| 1936-06-29 | Johnny Santo | WLLWWL | Carlin's Park, Baltimore | LOST Points |
| 1936-06-22 | Ritchie Mack | WDLDWD | Griffith Stadium, Washington | LOST Split-decision |
| 1936-05-25 | Bobby Wilson | WLWLWL | Griffith Stadium, Washington | WIN Points |
| 1936-04-07 | Bobby Wilson | LWLWLW | Turner's Arena, Washington | WIN Technical knockout |
| 1936-01-02 | Charley Thompson | LWDLWL | Palace Theater, Baltimore | LOST Technical knockout |
| 1935-10-28 | Mickey McQuade | debut | Carlin's Park, Baltimore | WIN KO |
| 1935-10-14 | George Esrick | LLLWDW | Carlin's Park, Baltimore | WIN Technical knockout |
| 1935-10-07 | Pete Lasick | WWWWDW | Carlin's Park, Baltimore | WIN Points |
| 1935-09-16 | King Morocco | LWW | Carlin's Park, Baltimore | WIN Technical knockout |
| 1935-09-02 | Charley Rondo | WWWWDL | Carlin's Park, Baltimore | WIN KO |
| 1935-08-26 | Charley Rondo | WWWWWD | Carlin's Park, Baltimore | WIN Points |
| 1935-08-19 | Larry Marino | LWWLWW | Oriole Park, Baltimore | DRAW Points |
| 1935-08-15 | Pete Lasick | WWWWWW | Oriole Park, Baltimore | DRAW Points |
| 1935-07-29 | Henry Grogan | L | Carlin's Park, Baltimore | WIN KO |
| 1935-07-15 | Billy Powell | WWWWW | Carlin's Park, Baltimore | DRAW Points |