John O'Brien boxer
- bouts
- 5
- won
- 1
- lost
- 3
- draw
- 0
- Status
- inactive
- Division
- light heavyweight
- Debut
- 1901-09-27
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1867-12-20
- Death
- -
- Nationality
- United Kingdom
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1909-03-13 | Alf Evans | W | Britannia Theatre, Hoxton | LOST Points |
| 1901-09-27 | Billy Morgan | WWWWW | NC |