Pat O'Brien boxer
- bouts
- 10
- won
- 4
- lost
- 4
- draw
- 2
- Status
- inactive
- Division
- middleweight
- Debut
- 1930-10-08
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1932-12-20 | Al Watson | WDWLWL | Fargo | LOST KO |
| 1932-11-25 | Fred Blocksidge | WLWWWW | Auditorium, Saint Paul | LOST |
| 1932-03-04 | Patsy Licker | debut | Eau Claire | WIN KO |
| 1932-02-05 | Paddy Aaron | WWWWDL | Eau Claire | WIN KO |
| 1932-01-18 | Ace of Spades | W | Auditorium, Minneapolis | WIN |
| 1932-01-07 | Jimmie King | DL | Avalon Ballroom, La Crosse | WIN KO |
| 1931-11-13 | Jack Ritter | debut | Eau Claire | WIN Technical knockout |
| 1931-08-07 | Mel Coleman | WWWWWL | Saint Paul | LOST |
| 1930-11-26 | Indian Jimmy Rivers | LWDLLD | Reno Arena, Reno | LOST Points |
| 1930-11-12 | Fred Bitnoff | LWWWWW | Reno Arena, Reno | DRAW Points |
| 1930-11-05 | Jackie Roberts | WLWWWW | Reno Arena, Reno | DRAW Points |
| 1930-10-15 | Johnny Jackson | DLWLLL | Reno Arena, Reno | LOST Technical knockout |
| 1930-10-08 | Jackie Roberts | LWLWWW | Reno Arena, Reno | LOST Points |