Jack Duffy boxer
- bouts
- 4
- won
- 1
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 1937-01-12
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1937-03-23 | Bobby Yannes | DDDLWW | Olympic Auditorium, Los Angeles | LOST KO |
| 1937-01-29 | Frankie Rice | DWWWWW | Legion Stadium, Hollywood | WIN Points |
| 1937-01-22 | Tommy Hart | WWWDDD | Legion Stadium, Hollywood | LOST Points |
| 1937-01-12 | Spider Hewitt | WWWWDD | Olympic Auditorium, Los Angeles | LOST Points |