Matty O'Brien boxer
- bouts
- 3
- won
- 2
- lost
- 1
- draw
- 0
- Status
- inactive
- Division
- welterweight
- Debut
- 1919-08-14
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1919-09-01 | Russell Chambers | DDW | Douglas | LOST KO |
| 1919-08-21 | Caveman Carlson | WLL | 5th Cavalry Arena, El Paso | WIN |
| 1919-08-14 | Aviator Garrett | DD | 5th Cavalry Arena, El Paso | WIN Points |