Jack O'Brien boxer
- bouts
- 3
- won
- 0
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- light heavyweight
- Debut
- 1930-12-10
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1931-01-26 | Silver Montini | debut | Aliquippa | LOST KO |
| 1930-12-25 | Lee Peer | debut | Aliquippa | LOST Technical knockout |
| 1930-12-10 | Nick Adamo | L | Aliquippa | LOST Points |