Jack O'Brien boxeador
- combates
- 7
- ganados
- 3
- perdidos
- 3
- empates
- 1
- Estado
- inactive
- División
- light
- Debut
- 1935-10-11
- Altura
- -
- Alcanza
- -
- Edad
- -
- Nacimiento
- -
- Muerte
- -
- Nacionalidad
- Australia
| Fecha | Oponente | Resultados últimos oponentes | Lugar | Resultado |
|---|---|---|---|---|
| 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 |