Pat O'Brien ('Cocky' O'Brien) pugile
- combattimenti
- 34
- vinto
- 11
- perduto
- 19
- pareggiare
- 3
- Stato
- inactive
- Divisione
- featherweight
- Debutto
- 1937-02-10
- Altezza
- -
- Arrivare a
- -
- Età
- -
- Nato
- -
- Morte
- -
- Nazionalità
- USA
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| Data | Avversario | Ultimi risultati degli avversari | Luogo | Risultato |
|---|---|---|---|---|
| 1944-03-03 | Charley Riley | WWWWW | Arena, Saint Louis | LOST KO |
| 1943-08-31 | Lulu O'Connor | WDWWWW | Exchange Stadium, Montreal | LOST Points |
| 1943-07-27 | Ivor Escobar | debut | Roosevelt Stadium, Union City | LOST Points |
| 1943-07-26 | Al Gauthier | LLDWWL | Century Stadium, West Springfield | LOST Points |
| 1943-07-19 | Tony Knapp | debut | Century Stadium, West Springfield | WIN KO |
| 1943-07-12 | Russ Bernstein | LWWWWW | Century Stadium, West Springfield | LOST Unanimous decision |
| 1943-07-06 | Russ Bernstein | LWWWW | Century Stadium, West Springfield | LOST Points |
| 1943-06-28 | Lou Foley | L | Century Stadium, West Springfield | WIN KO |
| 1942-01-05 | Al Medrano | WDLWWW | Ocean Park Arena, Santa Monica | LOST Technical knockout |
| 1941-09-19 | Eddie Stanley | LLLLLW | Coliseum, San Diego | LOST Technical knockout |
| 1939-05-05 | Freddie Pope | W | White City Arena, Chicago | LOST Points |
| 1939-04-28 | Joey Russano | debut | White City Arena, Chicago | LOST Points |
| 1939-04-21 | Freddie Pope | debut | White City Arena, Chicago | LOST Points |
| 1939-03-08 | Andy Canal | LLDLLW | Armory, Rock Island | LOST Points |
| 1939-02-27 | Andy Canal | LLLDLL | Marigold Gardens, Chicago | LOST Points |
| 1939-02-20 | Andy Canal | LLLLDL | Marigold Gardens, Chicago | WIN Points |
| 1939-02-17 | Joe Dennis | W | White City Arena, Chicago | WIN Points |
| 1939-02-10 | Jimmy Santora | LDW | White City Arena, Chicago | DRAW Points |
| 1938-12-23 | Andy Canal | LLLLLL | White City Arena, Chicago | DRAW Points |
| 1938-12-16 | Pete Vazikus | debut | White City Arena, Chicago | WIN Points |
| 1938-12-08 | Jimmy Santora | debut | White City Arena, Chicago | WIN Points |
| 1938-12-05 | Eddie Lander | WLWWWW | Marigold Gardens, Chicago | LOST Points |
| 1938-04-11 | Lou Laurie | LWWW | Marigold Gardens, Chicago | LOST Points |
| 1938-02-28 | Eddie Shapiro | WWWWWW | Marigold Gardens, Chicago | LOST Points |
| 1937-11-10 | Joey Chizar | DLWLLW | Memorial Auditorium, Gary | LOST Points |
| 1937-06-15 | Oscar Liebman | LWWWLW | Western Stadium, Chicago | WIN Points |
| 1937-06-11 | Henry Cullen | LWLLWD | White City Arena, Chicago | WIN Points |
| 1937-05-17 | Babe LaVarre | LWWWLL | Marigold Gardens Outdoor Arena, Chicago | WIN |
| 1937-05-03 | Ray Baker | WWDWWL | Marigold Gardens, Chicago | LOST Points |
| 1937-04-23 | Henry Cullen | WLWLLW | Majestic Theater, Chicago | DRAW Points |
| 1937-04-16 | Willie Dudlack | LLLLL | Rainbo Fronton, Chicago | WIN Points |
| 1937-04-09 | Willie Dudlack | LLLLL | Majestic Theater, Chicago | WIN KO |
| 1937-04-02 | Willie Dudlack | WLLLLL | Rainbo Fronton, Chicago | NC |
| 1937-03-19 | Willie Dudlack | WWLLLL | Majestic Arena, Chicago | WIN Points |
| 1937-02-10 | Henry Cullen | DWLWLL | Majestic Arena, Chicago | LOST Technical knockout |
