Jack Sylvester boxer
- bouts
- 2
- won
- 1
- lost
- 0
- draw
- 0
- Status
- inactive
- Division
- heavyweight
- Debut
- 1916-10-20
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1916-11-02 | Tad Derbyshire | WLW | Rose City A.C., Portland | WIN Technical knockout |
| 1916-10-20 | Jack Parres | LWL | Rose City A.C., Portland | NC No Contest |