John O'Brien (Tiger) boxer
- bouts
- 24
- won
- 13
- lost
- 11
- draw
- 0
- Status
- inactive
- Division
- heavyweight
- Debut
- 1926-04-30
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1931-12-02 | Jimmy Flinker | LLWWWD | 10th Street Arena, Modesto | LOST Points |
| 1928-07-27 | Andy Mitchell | WWDWLW | Coliseum, San Diego | LOST KO |
| 1928-06-29 | Eddie Trager | WLWL | Coliseum, San Diego | WIN Technical knockout |
| 1928-06-15 | Kenneth Clark | debut | Coliseum, San Diego | WIN KO |
| 1928-05-04 | George Lamson | WWLLLL | Coliseum, San Diego | LOST KO |
| 1928-04-20 | Alfred Dresden | LW | Coliseum, San Diego | WIN KO |
| 1928-04-13 | Al Konze | WLWWL | Coliseum, San Diego | LOST Points |
| 1927-12-23 | Angus Snyder | WWWWLW | Coliseum, San Diego | LOST KO |
| 1927-11-25 | Louie Alvarado | WWDLLL | Coliseum, San Diego | LOST KO |
| 1927-11-10 | Jack Savage | WLLLLL | Coliseum, San Diego | WIN Points |
| 1927-09-08 | Neil Clisby | DLLLWW | Pasadena | LOST KO |
| 1927-08-26 | Sailor Joe Hughes | DLLDWL | Coliseum, San Diego | LOST KO |
| 1927-08-12 | Dynamite Jackson | DL | Coliseum, San Diego | LOST Points |
| 1927-07-08 | Gunboat Williams | debut | Coliseum, San Diego | WIN Technical knockout |
| 1927-06-10 | Vic Alexander | DWLLWL | Coliseum, San Diego | LOST KO |
| 1927-05-13 | Jimmy Lyall | LLLLLL | Coliseum, San Diego | WIN KO |
| 1927-04-29 | Vic Alexander | LDWLLW | Coliseum, San Diego | WIN |
| 1927-04-08 | Young Ford | LLLLDD | Coliseum, San Diego | WIN Points |
| 1927-03-25 | Clyde Colvin | WWWLWW | Coliseum, San Diego | WIN Points |
| 1926-11-26 | Clyde Keener | WL | Coliseum, San Diego | LOST Points |
| 1926-08-06 | Jess Gonzalez | debut | Coliseum, San Diego | WIN KO |
| 1926-06-11 | Carl Brietenback | L | Coliseum, San Diego | WIN KO |
| 1926-06-04 | Carl Brietenback | debut | Coliseum, San Diego | WIN KO |
| 1926-04-30 | Ed Rose | debut | Coliseum, San Diego | WIN Technical knockout |