Jack O'Brien boxer
- bouts
- 2
- won
- 0
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- lightweight
- Debut
- 1931-08-15
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1933-03-09 | Billy McNabb | WWWDLL | Bridge Stadium, Sydney | LOST Points |
| 1931-08-15 | Tim Lester | LWLLLW | Newcastle Stadium, Newcastle | LOST KO |