Bobby O'Brien boxeador
- luta
- 12
- vitória
- 10
- derrota
- 2
- empate
- 0
- Estado
- inactive
- divisão
- lightweight
- Estreia
- 1941-10-21
- Altura
- -
- Alcance
- -
- Idade
- -
- Born
- -
- Death
- -
- Nascimento
- USA
| Data | Adversário | Últimos resultados dos adversários | Lugar | Resultado |
|---|---|---|---|---|
| 1942-02-27 | Billy Marcus | LLLWLL | Duwell Arena, Norwich | WIN Points |
| 1942-02-24 | Joey Wasnick | LLLDDD | Foot Guard Hall, Hartford | WIN KO |
| 1942-02-17 | Billy Marcus | LLLLLW | Foot Guard Hall, Hartford | WIN Points |
| 1942-02-10 | Bob Frechette | D | Foot Guard Hall, Hartford | WIN Points |
| 1942-02-02 | Billy Marcus | LLLLLL | Valley Arena, Holyoke | WIN Majority decision |
| 1942-01-27 | Billy Marcus | WLLLLL | Foot Guard Hall, Hartford | WIN Points |
| 1941-12-15 | Don Lyons | WLWWLW | Valley Arena, Holyoke | WIN Unanimous decision |
| 1941-12-01 | Joe Birch | DDWWWW | Valley Arena, Holyoke | WIN Split-decision |
| 1941-11-21 | Bobby Henderson | LLLLLL | Buckingham Hall, Waterbury | WIN Points |
| 1941-11-17 | Don Lyons | WWLWWL | Valley Arena, Holyoke | LOST Split-decision |
| 1941-11-03 | Jimmy Morro | WLWWWW | Valley Arena, Holyoke | LOST Unanimous decision |
| 1941-10-21 | Mel Scalzone | L | Foot Guard Hall, Hartford | WIN KO |