Jack O'Brien boxeur
- combats
- 7
- gagnés
- 4
- perdus
- 2
- match nul
- 1
- Situation
- inactive
- Division
- welterweight
- Début
- 1930-08-20
- Taille
- -
- Allonge
- -
- âge
- -
- Né
- -
- Décès
- -
- Nationalité
- Australia
| Date | Adversaire | Derniers résultats des adversaires | Lieu | Result |
|---|---|---|---|---|
| 1931-08-01 | Harry Holmes | LWLWWW | West Melbourne Stadium, Melbourne | WIN Technical knockout |
| 1931-06-12 | Mike O'Connor | LWLWDW | Fitzroy Stadium, Melbourne | WIN Points |
| 1931-04-10 | Tom Maloney | WWLWLL | Fitzroy Stadium, Melbourne | LOST Technical knockout |
| 1931-03-13 | Jack 'Cyclone' Darcy | WWWWLL | Fitzroy Stadium, Melbourne | WIN Points |
| 1930-12-24 | Alan Rickards | WWW | Fitzroy Stadium, Fitzroy, Melbourne | DRAW Points |
| 1930-09-20 | Jack Wilson | WWW | West Melbourne Stadium, Melbourne | WIN Points |
| 1930-08-20 | Jack Wilson | WW | West Melbourne Stadium, Melbourne | LOST KO |