Bobby Koster boxer
- bouts
- 9
- won
- 4
- lost
- 4
- draw
- 1
- Status
- inactive
- Division
- lightweight
- Debut
- 1919-03-19
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1925-01-28 | Jimmy O'Dowd | WDDWD | National Hall, San Francisco | LOST Points |
| 1920-08-24 | Bobby Jones | debut | Garibaldi Hall, San Francisco | WIN KO |
| 1920-07-27 | Young Frenchy | LLLLDD | San Mateo | DRAW Points |
| 1920-06-08 | Jack Moore | WWWLDD | Garibaldi Hall, San Francisco | LOST Points |
| 1920-04-06 | Joe Malone | debut | Garibaldi Hall, San Francisco | WIN KO |
| 1919-11-04 | George Ritchie | debut | Garibaldi Hall, San Francisco | WIN KO |
| 1919-10-21 | Ted Harvey | debut | Garibaldi Hall, San Francisco | WIN |
| 1919-10-13 | Battling Carlo | WLW | North Beach A.C., Stockton | LOST Technical knockout |
| 1919-03-19 | Young Saylor | debut | Association Club, San Francisco | LOST Points |