Bob O'Brien boxer
- bouts
- 16
- won
- 6
- lost
- 9
- draw
- 1
- Status
- inactive
- Division
- heavyweight
- Debut
- 1954-08-02
- Height
- 6′ 0″/183cm
- Reach
- -
- Age
- -
- Born
- 1936-03-17
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1957-12-06 | Tony Hughes | WWWWWW | Arena, Cleveland | LOST Unanimous decision |
| 1957-05-07 | Charley Norkus | WWLLWL | Scranton | LOST Technical knockout |
| 1957-02-22 | Tony Hughes | WWWWWW | Arena, Cleveland | LOST Points |
| 1956-11-23 | Alex Miteff | WWWWWW | Madison Square Garden, New York | LOST Technical knockout |
| 1956-08-10 | Johnny York | LWWLLL | Madison Square Garden, New York | WIN Points |
| 1956-06-08 | Alex Miteff | debut | Madison Square Garden, New York | LOST Points |
| 1956-03-26 | Roy Bullock | WLWDLL | St. Nicholas Arena, New York | LOST Technical knockout |
| 1956-02-11 | Al Pierce | debut | Armory, Paterson | WIN KO |
| 1956-02-03 | Roy Bullock | WWWLWD | Madison Square Garden, New York | WIN Points |
| 1955-12-14 | Bob Biehler | WLWWWL | War Memorial Auditorium, Syracuse | LOST Unanimous decision |
| 1955-09-21 | Frank Gioseffi | WWWWWW | Yankee Stadium, Bronx | LOST Points |
| 1955-07-06 | Frank Gioseffi | WWWWWW | Madison Square Garden, New York | LOST Points |
| 1955-05-09 | Roy Bullock | debut | St. Nicholas Arena, New York | WIN Points |
| 1955-04-18 | Jack Jacobs | LLWLLD | St. Nicholas Arena, New York | WIN Points |
| 1955-03-25 | Jack Jacobs | DLLWLL | Madison Square Garden, New York | DRAW Points |
| 1954-08-02 | Tommy Selkirk | W | Eastern Parkway Arena, Brooklyn | WIN Points |
