Jimmy O'Brien boxer
- bouts
- 52
- won
- 26
- lost
- 23
- draw
- 3
- Status
- inactive
- Division
- heavyweight
- Debut
- 1943-05-04
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1924-05-28
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1952-06-25 | Shirley Pembleton | WLWLWD | Yankee Stadium, Bronx | LOST KO |
| 1950-10-26 | Dan Bucceroni | WWWWWW | Convention Hall, Philadelphia | LOST KO |
| 1949-02-17 | Freddie Schott | LLLLLW | Armory, Akron | LOST Technical knockout |
| 1948-11-10 | Phil Muscato | WWLWWW | Armory, Akron | LOST KO |
| 1948-10-19 | Phil Muscato | WWWLWW | Memorial Auditorium, Buffalo | LOST Unanimous decision |
| 1948-07-27 | Melio Bettina | WLWWWW | MacArthur Stadium, Brooklyn | LOST Technical knockout |
| 1948-03-16 | Bob Isler | WDDLDW | Dorsey Park, Miami | LOST Points |
| 1947-12-23 | Lee Q. Murray | WLWWW | Park Arena, Bronx | LOST Technical knockout |
| 1947-12-06 | Fidel Arciniega | LWWWWL | Ridgewood Grove, Brooklyn | DRAW Points |
| 1947-10-02 | Davey Feld | WLWLWL | Armory, Akron | LOST Points |
| 1947-09-12 | Davey Feld | LLWLWL | Akron | LOST Points |
| 1947-08-13 | Gene Jones | WWWLWW | Public Service Ball Park, Camden | LOST Technical knockout |
| 1947-07-17 | Charley Banks | WLLLWW | Huntington | LOST Points |
| 1947-06-26 | O'Dell Riley | LWWLLW | Armory, Akron | WIN Unanimous decision |
| 1947-01-08 | Tami Mauriello | WWWWWL | International Amphitheatre, Chicago | LOST KO |
| 1946-09-26 | Henry Jones | WLWWLL | Armory, Akron | WIN Points |
| 1946-09-09 | Archie Moore | WWWWLW | Coliseum, Baltimore | LOST Technical knockout |
| 1946-08-20 | Jimmy Carollo | LLLWWW | Dexter Park Arena, Woodhaven, Queens | LOST Points |
| 1946-07-29 | Johnny Colan | WWWLWW | Queensboro Arena, Long Island City, Queens | WIN Unanimous decision |
| 1946-07-18 | Clarence Jones | LWLWLW | Armory, Akron | WIN Technical knockout |
| 1946-06-13 | Lee Savold | WWLWW | Rubber Bowl, Akron | LOST Unanimous decision |
| 1946-04-17 | Charley Roth | WWLWWW | Armory, Akron | WIN Points |
| 1946-03-07 | Mickey Hayes | LLLLLL | Golden Gate Arena, New York | WIN KO |
| 1945-12-28 | John Thomas | WWLWLW | Madison Square Garden, New York | LOST Points |
| 1945-12-04 | Clent Conway | WWWLWW | Boston Garden, Boston | LOST KO |
| 1945-07-16 | George Parks | WLLWLL | Meadowbrook Bowl, Newark | LOST Technical knockout |
| 1945-07-09 | Dixie Lee Oliver | WWWWLL | Coliseum, Baltimore | WIN Points |
| 1945-03-23 | Elmer Ray | WWWWWW | Madison Square Garden, New York | LOST Technical knockout |
| 1945-01-05 | Billy Nichy | WLWWWL | Olympia Stadium, Detroit | WIN KO |
| 1944-12-14 | Charley Eagle | LLWWWL | Carlin's Park, Baltimore | WIN Unanimous decision |
| 1944-12-08 | Napoleon Mitchell | WLDLLW | Madison Square Garden, New York | WIN KO |
| 1944-12-04 | Teddy Randolph | LWLWLW | Laurel Garden, Newark | WIN Points |
| 1944-11-24 | O'Dell Riley | LDDLLW | Olympia Stadium, Detroit | WIN KO |
| 1944-09-11 | Dan Merritt | DLLDDL | Meadowbrook Bowl, Newark | LOST Technical knockout |
| 1944-08-31 | Tony Gillo | WLLLLL | Carlin's Park, Baltimore | WIN Points |
| 1944-08-28 | Clarence Brown | LWWWWL | Laurel Garden, Newark | WIN Points |
| 1944-08-21 | George Higgs | LDWLLL | Meadowbrook Bowl, Newark | WIN KO |
| 1944-08-07 | Teddy Randolph | WWWLDL | Meadowbrook Bowl, Newark | WIN Points |
| 1944-07-14 | Jimmy Reeves | WLWLLW | Olympia Stadium, Detroit | WIN KO |
| 1944-06-05 | Tony Gillo | WWLLLW | Meadowbrook Bowl, Newark | WIN KO |
| 1944-05-23 | Johnny Flynn | LLLLLW | Memorial Auditorium, Buffalo | WIN Points |
| 1944-04-27 | Austin Johnson | WWWW | Waltz Dream Arena, Atlantic City | DRAW Points |
| 1944-04-17 | Stan Chesna | debut | Casino Hall, Scranton | WIN KO |
| 1944-01-10 | Buddy Millard | LWWWWW | Civic Auditorium, San Francisco | LOST Technical knockout |
| 1943-12-03 | OC Loftus | LLWLWL | Legion Stadium, Hollywood | WIN KO |
| 1943-11-15 | Willis Johnson | DLLLLL | Ocean Park Arena, Santa Monica | WIN Technical knockout |
| 1943-11-02 | Watson Jones | WWLWLW | Olympic Auditorium, Los Angeles | LOST Technical knockout |
| 1943-08-16 | Arthur France | LLLLWL | Lido Sports Arena, New York | WIN Points |
| 1943-07-09 | Al Francis | WWWWWW | Boston Garden, Boston | WIN Points |
| 1943-06-21 | Van McNutt | LWLWLL | Meadowbrook Bowl, Newark | DRAW Points |
| 1943-06-15 | Oliver Shanks | WLWWLW | MacArthur Stadium, Brooklyn | WIN Points |
| 1943-05-04 | Johnny Shedler | WWLLL | Grotto Auditorium, Jersey City | WIN KO |
