Bonnie O'Brien boxer
- bouts
- 19
- won
- 10
- lost
- 6
- draw
- 2
- Status
- inactive
- Division
- lightweight
- Debut
- 1899-01-05
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1905-04-10 | Al Rogers | W | Frisco Club, Buffalo | DRAW Points |
| 1905-03-08 | Adam Ryan | DDWDLW | Whitington Park, Hot Springs | LOST KO |
| 1904-08-29 | Cy Flynn | WWWLWW | Eagles's Gym, Bradford | LOST KO |
| 1902-06-10 | Cy Flynn | D | International A.C., Fort Erie | WIN KO |
| 1902-01-24 | George Siddons | WLDDWW | Warren | WIN Technical knockout |
| 1901-02-25 | Kid McCarthy | LWWDLW | Parkside Wheeling Club, Buffalo | WIN Points |
| 1901-01-16 | Hymie Goldstein | DWWDLD | Lake City A.C., Erie | WIN KO |
| 1900-08-06 | Joe Leonard | DDLWWD | Olympic A.C., Buffalo | LOST Technical knockout |
| 1900-07-24 | Tom McCarthy | WDWLL | Eagles Park, Buffalo | DRAW Points |
| 1900-06-04 | Kid Bush | DWWWDW | Olympic A.C., Buffalo | LOST Points |
| 1900-04-26 | Tom McCarthy | LLWWWL | International A.C., Buffalo | NC |
| 1900-04-05 | Kid McCarthy | DWLWWD | Opera House, Bradford | WIN Points |
| 1900-03-13 | Alec Sloan | DWWWWW | Ortner's Hall, Buffalo | WIN Points |
| 1899-11-03 | Fred Baker | L | Olympic A.C., Buffalo | LOST Points |
| 1899-05-27 | Frank Zimpher | LWDLLD | Hawthorne Club, Cheektowaga | WIN Points |
| 1899-05-01 | John Haslip | WWLL | Dunkirk A.C., Dunkirk | WIN Points |
| 1899-04-08 | Jack Daly | L | Empire A.C., Toronto | LOST KO |
| 1899-03-06 | Harry Pigeon | DWWWWL | Olympic A.C., Buffalo | WIN Technical knockout |
| 1899-01-05 | Harry Pigeon | LDWWWW | Olympic A.C., Buffalo | WIN Points |
