Jack Koster boxer
- bouts
- 1
- won
- 0
- lost
- 1
- draw
- 0
- Status
- inactive
- Division
- -
- Debut
- 1905-10-23
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- -
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1915-05-28 | Kid Hamilton | LW | Garden Theater, Buffalo | LOST KO |
| 1905-10-23 | Eddie Gardner | debut | Tuxedo A.C., New York | LOST |