Jack O'Brien boxer
- bouts
- 1
- won
- 1
- lost
- 0
- draw
- 0
- Status
- inactive
- Division
- light heavyweight
- Debut
- 1926-08-31
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1931-01-29 | Bill Chappel | W | Armory, Noblesville | DRAW |
| 1931-01-15 | Carl King | WWDWW | Armory, Noblesville | WIN |
| 1926-08-31 | Soldier Bob Shannon | W | Fort Benjamin Harrison, Lawrence | LOST |