All available race results Willem Rademaker
| Date | Race | Rank |
| 23/08 | Den Haag wegwedstrijd | 1 |
Rider information for 1890
| Rank | 837 |
| Score | 0 |
| Name | Willem RADEMAKER |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 21/06 | Den Haag wegwedstrijd | 2 |
| 16/08 | Arnhem-Meeting | 1 |
| 24/08 | Scheveningen-Meeting | 2 |
Rider information for 1891
| Rank | 795 |
| Score | 0 |
| Name | Willem RADEMAKER |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 07/08 | Arnhem-Meeting "Kampioenschap van het vasteland" | 3 |
Rider information for 1892
| Rank | 481 |
| Score | 0 |
| Name | Willem RADEMAKER |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 27/08 | Meisterschaft Europa 10 km | 7 |
Rider information for 1893
| Rank | 156 |
| Score | 44 |
| Name | Willem RADEMAKER |
| Country | Netherlands |
| Team | Individual |