Jack O'Brien boxer
- bouts
- 7
- won
- 3
- lost
- 3
- draw
- 1
- Status
- inactive
- Division
- light
- Debut
- 1935-10-11
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1939-12-15 | Len Schluter | WWWLWL | Olympic Theatre, Mackay | DRAW Points |
| 1939-12-08 | Maxie Richards | WWLWLW | Olympic Theatre, Mackay | WIN Points |
| 1939-06-23 | Ron Gordon | WWWLWL | Brisbane Stadium, Brisbane | WIN Points |
| 1939-06-02 | Len Schluter | WWWLW | Brisbane Stadium, Brisbane | LOST Points |
| 1939-03-03 | Mick Jackson | debut | Monto | WIN KO |
| 1935-10-18 | Jack Brown | W | Rockhampton Stadium, Rockhampton | LOST KO |
| 1935-10-11 | Reg Gould | debut | Rockhampton Stadium, Rockhampton | LOST Points |