Jack O'Brien boxer
- bouts
- 1
- won
- 0
- lost
- 1
- draw
- 0
- Status
- inactive
- Division
- welter
- Debut
- 1935-06-14
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1936-01-27 | Tony Orrico | LLDLLL | Raritan Auditorium, Perth Amboy | LOST |
| 1935-06-14 | Carl Mays | WLLLLD | Punch Bowl, Millville | LOST Points |