Jack Jock O'Brien boxeador
- combates
- 24
- ganados
- 9
- perdidos
- 12
- empates
- 3
- Estado
- inactive
- División
- flyweight
- Debut
- 1903-10-24
- Altura
- -
- Alcanza
- -
- Edad
- -
- Nacimiento
- -
- Muerte
- -
- Nacionalidad
- United Kingdom
| Fecha | Oponente | Resultados últimos oponentes | Lugar | Resultado |
|---|---|---|---|---|
| 1912-11-16 | Billy Turnbull | LWLLWL | Olympia A.C., Hartlepool | WIN Points |
| 1908-09-19 | Bill Cowley | DLLLWW | The Circus, West Hartlepool | LOST Points |
| 1908-02-15 | Charlie Harris | LLWLLW | The Circus, West Hartlepool | LOST Technical knockout |
| 1907-12-07 | Jack Kelly | WLWWLL | The Circus, West Hartlepool | LOST Technical knockout |
| 1907-10-19 | Joe Phillips | WLDLLD | The Circus, West Hartlepool | WIN Points |
| 1906-04-28 | Owen Kelly | LWWLWL | The Circus, West Hartlepool | LOST Technical knockout |
| 1906-04-14 | Owen Kelly | LLWWLW | The Circus, West Hartlepool | WIN Technical knockout |
| 1906-03-17 | J Cowley | W | The Circus, West Hartlepool | WIN Technical knockout |
| 1906-02-24 | Jasper Carter | debut | The Circus, West Hartlepool | LOST Points |
| 1905-09-16 | Jack Kelly | WDWWDW | The Circus, West Hartlepool | WIN Points |
| 1903-10-24 | Owen Kelly | LWL | The Circus, West Hartlepool | WIN KO |