All available race results Karel Janssens
| Date | Race | Rank |
| 02/08 | Binche - Tournai - Binche | 17 |
Rider information for 1942
| Rank | 738 |
| Score | 0 |
| Name | Karel JANSSENS |
| Country | Belgium |
| Team | Individual |
No results available in season 1945.
Rider information for 1945
| Rank | 602 |
| Score | 6 |
| Name | Karel JANSSENS |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| Dwars door België | ||
| 07/04 | Stage 2 | 11 |
| Tour de Belgique | ||
| 16/05 | Stage 1 | 22 |
| 17/05 | Stage 2 | 6 |
Rider information for 1946
| Rank | 1280 |
| Score | 0 |
| Name | Karel JANSSENS |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 01/05 | Grote 1 Mei-Prijs Hoboken | 21 |
Rider information for 1947
| Rank | 1619 |
| Score | 0 |
| Name | Karel JANSSENS |
| Country | Belgium |
| Team | Individual |
No results available in season 1952.
Rider information for 1952
| Rank | 1519 |
| Score | 0 |
| Name | Karel JANSSENS |
| Country | Belgium |
| Team | L'Express |