All available race results Jan-Hendrik "Jak" Dekker
No results available in season 1986.
Rider information for 1986
| Rank | 1218 |
| Score | 2 |
| Name | Jan-Hendrik "Jak" DEKKER |
| Country | Netherlands |
| Team | Individual |
No results available in season 1987.
Rider information for 1987
| Rank | 1327 |
| Score | 1 |
| Name | Jan-Hendrik "Jak" DEKKER |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| Wyścig Pokoju / Závod Míru / Friedensfahrt | ||
| 23/05 | General Classification | 68 |
Rider information for 1988
| Rank | 1734 |
| Score | 0 |
| Name | Jan-Hendrik "Jak" DEKKER |
| Country | Netherlands |
| Team | Individual |