All available race results Jef Croes
| Date | Race | Rank |
| 13/05 | Gent - Wevelgem | 7 |
Rider information for 1937
| Rank | 273 |
| Score | 111 |
| Name | Jef CROES |
| Country | Belgium |
| Team | Individual |
No results available in season 1940.
Rider information for 1940
| Rank | 395 |
| Score | 10 |
| Name | Jef CROES |
| Country | Belgium |
| Team | Individual |