Johnny O'Brien boxer
- bouts
- 0
- won
- 0
- lost
- 0
- draw
- 0
- Status
- inactive
- Division
- featherweight
- Debut
- 1920-05-21
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1923-04-16 | Joe McLaughlin | WLLLWW | Bohemian-American Hall, Chicago | LOST |
| 1920-05-21 | Jimmy Muzzy | W | Kenosha | LOST |