Bobby O'Brien boxer
- bouts
- 13
- won
- 3
- lost
- 8
- draw
- 2
- Status
- inactive
- Division
- welterweight
- Debut
- 1940-10-04
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1946-11-25 | Al Young | WWW | Savannah | LOST KO |
| 1942-04-24 | Johnny Flores | W | Coliseum, San Diego | DRAW Points |
| 1941-08-28 | Hezekiah Liggins | LWWWDL | Coliseum, San Diego | LOST Points |
| 1941-08-15 | Jack Romero | debut | Coliseum, San Diego | LOST Points |
| 1941-07-18 | Joe Flores | LLWWDL | Coliseum, San Diego | LOST Points |
| 1941-05-10 | Eddie Halley | WWD | Eastside Arena, Los Angeles | LOST KO |
| 1941-04-25 | Joe Flores | LLLLWW | Coliseum, San Diego | DRAW Points |
| 1941-03-28 | Joe Flores | LLLLLW | Coliseum, San Diego | LOST Technical knockout |
| 1941-03-21 | Al Morey | WDLWDL | Coliseum, San Diego | WIN Points |
| 1941-03-15 | Tony Martin | WWWL | Eastside Arena, Los Angeles | LOST Points |
| 1940-10-14 | Joe Smithers | WDLWDD | Ocean Park Arena, Santa Monica | LOST KO |
| 1940-10-11 | Jimmy Moncton | debut | Coliseum, San Diego | WIN Technical knockout |
| 1940-10-04 | Willard Grant | WWW | Coliseum, San Diego | WIN Technical knockout |