Billy O'Brien boxeador
- combates
- 7
- ganados
- 3
- perdidos
- 3
- empates
- 1
- Estado
- inactive
- División
- featherweight
- Debut
- 1943-10-02
- Altura
- -
- Alcanza
- -
- Edad
- -
- Nacimiento
- -
- Muerte
- -
- Nacionalidad
- Australia
| Fecha | Oponente | Resultados últimos oponentes | Lugar | Resultado |
|---|---|---|---|---|
| 1946-11-09 | Tommy Farr | LWWLD | West Melbourne Stadium, Melbourne | LOST Points |
| 1946-10-26 | Arch Dowlan | LWD | West Melbourne Stadium, Melbourne | WIN Points |
| 1946-05-04 | Mick Foster | debut | West Melbourne Stadium, Melbourne | LOST Points |
| 1946-04-27 | Young Kelly | W | West Melbourne Stadium, Melbourne | WIN Points |
| 1946-04-06 | Charlie Cook | debut | West Melbourne Stadium, Melbourne | DRAW Points |
| 1946-03-16 | Young Scouller | debut | West Melbourne Stadium, Melbourne | WIN Points |
| 1943-10-02 | Tom Harkings | W | West Melbourne Stadium, Melbourne | LOST Points |
