Willie O'Brien boxer
- bouts
- 2
- won
- 0
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- bantamweight
- Debut
- 1920-02-13
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1920-03-12 | Eddie Mack | W | Garage, Stamford | LOST Technical knockout |
| 1920-02-13 | Joe Pierce | debut | Mission Street Hall, Stamford | LOST KO |