Jack O'Sullivan boxer
- bouts
- 37
- won
- 14
- lost
- 18
- draw
- 4
- Status
- inactive
- Division
- heavyweight
- Debut
- 1937-11-23
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1947-10-15 | Chuck Jennings | LLLWLW | Kalurah Temple, Binghamton | LOST KO |
| 1946-08-27 | Stanley Myka | LWLWLW | Memorial Auditorium, Buffalo | WIN Points |
| 1946-08-15 | Eddie Jackson | WWDWWW | Dunn Field, Elmira | LOST Technical knockout |
| 1946-05-29 | Clarence Jones | WWLLWL | Armory, Akron | LOST Technical knockout |
| 1946-05-14 | Claude Brown | LWLLWW | Memorial Auditorium, Buffalo | WIN Technical knockout |
| 1944-10-14 | Sonny Beck | debut | Armory, Spokane | NC No Contest |
| 1944-04-01 | Charley Roth | LLWWLL | Muskegon | DRAW Points |
| 1944-03-25 | Freddie Schott | WWWWWW | Ridgewood Grove, Brooklyn | LOST KO |
| 1944-03-22 | Al Mitchell | debut | Memorial Auditorium, Buffalo | WIN KO |
| 1944-03-06 | Johnny Vorce | WWLWWL | Duquesne Gardens, Pittsburgh | LOST KO |
| 1944-02-21 | Frank Lumpkin | LWWDWL | Kalurah Temple, Binghamton | LOST KO |
| 1943-10-28 | Al Patterson | WLLWWW | Carney Auditorium, Erie | LOST Technical knockout |
| 1943-10-25 | Danny Devlin | LWLWLW | Casino Hall, Scranton | DRAW Points |
| 1943-09-28 | Frank Lumpkin | DLWWDW | Old Vienna Theater, Buffalo | WIN Unanimous decision |
| 1943-09-01 | Teddy Brown | LLLLLL | Scranton Stadium, Scranton | WIN Technical knockout |
| 1943-08-30 | Charley Roth | LLLLLW | Civic Stadium, Buffalo | DRAW Points |
| 1943-08-06 | Frank Lumpkin | LLDLWW | Johnson Field, Johnson City | DRAW Points |
| 1943-07-26 | Frank Lumpkin | WLLDLW | Civic Stadium, Buffalo | LOST Points |
| 1943-05-18 | Rudy Zorich | LWL | Eagles Auditorium, Buffalo | LOST |
| 1941-11-25 | Ted Wint | WWWLWW | New York Coliseum, Bronx | LOST KO |
| 1941-08-04 | Don O'Keefe | debut | Municipal Stadium, Syracuse | WIN Points |
| 1941-06-09 | Al Hart | WLWLDW | Hawkins Stadium, Albany | LOST KO |
| 1940-05-02 | Johnny Flynn | LLWLDW | Columbus Civic Center, Rochester | LOST Points |
| 1939-12-04 | Leroy Evans | WL | Broadway Auditorium, Buffalo | LOST KO |
| 1939-09-20 | Lee Savold | LWWWWW | Briggs Stadium, Detroit | LOST Technical knockout |
| 1939-07-06 | Tommy Osborne | WWLWW | Maple Leaf Gardens, Toronto | WIN Technical knockout |
| 1939-06-26 | Lou Presto | WLLLLL | Broadway Auditorium, Buffalo | WIN Points |
| 1939-05-22 | Lou Campbell | LL | Broadway Auditorium, Buffalo | WIN Technical knockout |
| 1939-01-16 | Billy Nichy | LLLWWW | Broadway Auditorium, Buffalo | LOST Points |
| 1939-01-02 | George Burke | WWWLWL | Broadway Auditorium, Buffalo | WIN Points |
| 1938-12-19 | Schoolboy Andrews | WWLLWW | Broadway Auditorium, Buffalo | WIN KO |
| 1938-11-14 | Billy Nichy | WWLLLW | Broadway Auditorium, Buffalo | LOST Points |
| 1938-09-28 | Henry Wacker | WWWW | Olympia Stadium, Detroit | LOST Points |
| 1938-09-19 | Charley Douglas | DLLLLL | Broadway Auditorium, Buffalo | WIN Technical knockout |
| 1938-08-29 | Joe Kastellick | debut | Broadway Auditorium, Buffalo | WIN KO |
| 1938-07-18 | Danny Paul | WLWWWD | Maple Leaf Gardens, Toronto | WIN Technical knockout |
| 1937-11-23 | Ted Keating | WWWWWW | Mutual Street Arena, Toronto | LOST Points |
