Jack O'Brien boxeador
- luta
- 9
- vitória
- 4
- derrota
- 5
- empate
- 0
- Estado
- inactive
- divisão
- welterweight
- Estreia
- 1957-12-07
- Altura
- -
- Alcance
- -
- Idade
- -
- Born
- 1939-02-19
- Death
- -
- Nascimento
- United Kingdom
| Data | Adversário | Últimos resultados dos adversários | Lugar | Resultado |
|---|---|---|---|---|
| 1959-05-09 | Gerry O'Neill | WLLWDL | Belfast | LOST KO |
| 1959-04-04 | Bobby Griffin | WWDLLW | Ulster Hall, Belfast | WIN Points |
| 1959-03-28 | Gerry O'Neill | DWLLWD | Belfast | WIN Points |
| 1959-02-14 | Tommy Houston | WLWLLD | Ulster Hall, Belfast | WIN Points |
| 1959-02-06 | Tommy Larmour | WWLWDL | Belfast | WIN Points |
| 1958-06-21 | Tommy Larmour | LLLWDW | Belfast | LOST KO |
| 1958-01-11 | Jim Loughans | LLLW | Ulster Hall, Belfast | LOST KO |
| 1957-12-21 | Ray Bond | WL | Ulster Hall, Belfast | LOST Corner retirement |
| 1957-12-07 | Bobby Griffin | WW | Belfast | LOST KO |