Jimmy O'Brien boxer
- bouts
- 10
- won
- 5
- lost
- 5
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 1945-05-09
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1946-04-15 | Ted Gories | L | Phillips Field, Tampa | LOST KO |
| 1946-04-08 | Tiny Beau Jack | L | Legion Coliseum, Sarasota | WIN Points |
| 1946-03-18 | Tiny Beau Jack | debut | Legion Coliseum, Sarasota | WIN Technical knockout |
| 1946-02-18 | Cannonball Tucker | W | Legion Coliseum, Sarasota | LOST KO |
| 1946-02-11 | Cannonball Tucker | debut | Legion Coliseum, Sarasota | LOST KO |
| 1946-01-28 | Kid Claude | debut | Legion Coliseum, Sarasota | WIN KO |
| 1946-01-07 | Garcia Milkus | debut | Legion Coliseum, Sarasota | WIN Points |
| 1945-12-13 | Oscar Williams | WLLWWL | Municipal Auditorium, Tampa | LOST Points |
| 1945-11-29 | Cherokee Howard | debut | Municipal Auditorium, Tampa | WIN Points |
| 1945-05-09 | Harold Wilson | debut | Municipal Auditorium, Tampa | LOST KO |