O'Brien boxer
- bouts
- 9
- won
- 4
- lost
- 5
- draw
- 0
- Status
- inactive
- Division
- lightweight
- Debut
- 1920-03-10
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Australia
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1924-03-29 | William Voight | LLL | Newcastle Stadium, Newcastle | LOST Points |
| 1924-01-19 | Thompson | LWL | Newcastle Stadium, Newcastle | LOST Points |
| 1923-05-19 | B Mack | W | Newcastle Stadium, Newcastle | LOST KO |
| 1923-04-21 | Bob Shannon | debut | Newcastle Stadium, Newcastle | WIN KO |
| 1923-02-14 | Ben Morley | WWWLL | Newcastle Stadium, Newcastle | LOST Points |
| 1921-10-12 | Fogarty | debut | Imperial Stadium, Newcastle | WIN Corner retirement |
| 1921-09-24 | Oakes | debut | Imperial Stadium, Newcastle | LOST Points |
| 1920-03-19 | Bronzer | debut | Phelan's Hall, Wallsend | WIN Points |
| 1920-03-10 | Young Daniels | debut | Imperial Pavilion, Newcastle | WIN KO |