Gene O'Brien (Eugene) boxer
- bouts
- 9
- won
- 3
- lost
- 5
- draw
- 1
- Status
- inactive
- Division
- middleweight
- Debut
- 1944-08-11
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1946-10-07 | Robert Smith | WLD | Coliseum Bowl, San Francisco | LOST Points |
| 1946-09-27 | Bob Smith | WLLLLL | National Hall, San Francisco | LOST KO |
| 1945-03-12 | Al McDonald | WLLLLL | Civic Auditorium, San Francisco | LOST Technical knockout |
| 1945-03-09 | Teddy Allen | LL | National Hall, San Francisco | DRAW Points |
| 1944-10-06 | Bob Smith | LWLLLL | National Hall, San Francisco | WIN Points |
| 1944-10-02 | Billy Mayfield | DWWW | Civic Auditorium, San Francisco | LOST Technical knockout |
| 1944-09-22 | Nick Venegas | debut | National Hall, San Francisco | WIN KO |
| 1944-09-11 | Bob Smith | LLWLLL | Civic Auditorium, San Francisco | WIN Technical knockout |
| 1944-08-11 | Reuben Flores | debut | National Hall, San Francisco | LOST Technical knockout |
