Jack Sars boxer
- bouts
- 15
- won
- 4
- lost
- 11
- draw
- 0
- Status
- inactive
- Division
- middleweight
- Debut
- 1921-08-15
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1900-02-27
- Death
- -
- Nationality
- Netherlands
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1925-11-02 | Flip Dierijck | WWLLLL | Circus Schouwburg, Rotterdam | LOST Points |
| 1924-08-29 | Flip Dierijck | WLWLLW | Circus Schouwburg, Rotterdam | LOST |
| 1924-06-17 | Piet Piekaar | WLLLLL | Haagsche Zoo, Den Haag | LOST |
| 1924-06-15 | Marinus Krieger | WLLLLW | Gebouw Prins Hendrik, Zaandam | LOST Points |
| 1922-08-23 | Ted Coveney | LLL | Concertgebouw, Amsterdam | LOST Points |
| 1922-07-02 | Theo Kourimsky | WLWLWD | Amsterdamsche Stadion, Amsterdam | LOST Points |
| 1922-05-31 | Flip Dierijck | WWLWLL | Theater Carré, Amsterdam | WIN Points |
| 1922-04-28 | Wim Wiertz | WLLWWL | Theater Carré, Amsterdam | WIN Points |
| 1922-03-16 | Wim Wiertz | LWWLLW | Theater Carré, Amsterdam | LOST Technical knockout |
| 1922-02-22 | Wim Wiertz | WLWWLL | Theater Carré, Amsterdam | LOST Technical knockout |
| 1921-12-30 | Henk Jonkman | LWWWLL | Theater Carré, Amsterdam | LOST Points |
| 1921-12-08 | Jan Hesterman | DLW | Theater Carré, Amsterdam | LOST Points |
| 1921-11-18 | August Huber | DWLLWL | Theater Carré, Amsterdam | WIN Points |
| 1921-09-24 | Wim Wiertz | WLWW | Frascati, Amsterdam | WIN Points |
| 1921-08-15 | Karel de Jager | WWWWDD | Paleis voor Volksvlijt, Amsterdam | LOST Points |