Pat O'Brien pugile
- combattimenti
- 11
- vinto
- 4
- perduto
- 5
- pareggiare
- 2
- Stato
- inactive
- Divisione
- featherweight
- Debutto
- 1937-03-01
- Altezza
- -
- Arrivare a
- -
- Età
- -
- Nato
- -
- Morte
- -
- Nazionalità
- USA
| Data | Avversario | Ultimi risultati degli avversari | Luogo | Risultato |
|---|---|---|---|---|
| 1938-01-31 | Joe Tambe | LLLLLW | Marigold Gardens, Chicago | WIN Points |
| 1937-10-18 | Joey Chizar | LDLWLL | Marigold Gardens, Chicago | LOST Points |
| 1937-08-12 | George Feist | WLLWWW | Riverview Rink, Milwaukee | LOST Points |
| 1937-07-12 | George Feist | LLWLLW | Marigold Gardens Outdoor Arena, Chicago | LOST Technical knockout |
| 1937-06-14 | George Feist | WLLWLL | Marigold Gardens Outdoor Arena, Chicago | LOST Points |
| 1937-05-24 | Babe LaVarre | WWWLLL | Marigold Gardens Outdoor Arena, Chicago | WIN Points |
| 1937-05-12 | Willie Dudlack | LLLLL | Auditorium, Milwaukee | WIN Points |
| 1937-04-30 | Frankie Jarr | LLWWLW | Majestic Arena, Chicago | LOST Points |
| 1937-04-05 | Willie Dudlack | LLLLL | Eagles Club, Milwaukee | WIN Points |
| 1937-03-15 | Ray Blum | LWWLLD | Eagles Club, Milwaukee | DRAW Points |
| 1937-03-01 | Ray Blum | LLWWLL | Eagles Club, Milwaukee | DRAW Points |