All available race results Jan de Valck
| Date | Race | Rank |
| Tour de l'Ouest | ||
| 06/08 | Stage 1 | 1 |
| 05/10 | Paris - Tours | 4 |
Rider information for 1952
| Rank | 296 |
| Score | 133 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Terrot - Hutchinson - Wolber |
| Date | Race | Rank |
| 22/03 | Ronde van Limburg | 5 |
| Dwars door België | ||
| 18/04 | Stage 1 | 2 |
| 19/04 | General Classification | 9 |
| 02/05 | La Flèche Wallonne | 4 |
| G.P. de la Bicicleta Eibarresa | ||
| 08/05 | Stage 1 | 2 |
| 10/05 | General Classification | 5 |
| Vuelta a Asturias | ||
| 03/06 | Stage 6 | 8 |
| 04/06 | Stage 7 | 10 |
| 04/06 | General Classification | 27 |
| 04/10 | Paris - Tours | 6 |
| 25/10 | Giro di Lombardia | 6 |
Rider information for 1953
| Rank | 122 |
| Score | 495 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Bury |
| Date | Race | Rank |
| 07/03 | Ronde van Limburg | 13 |
| 14/03 | Omloop Het Volk | 3 |
| 19/03 | Milano - Sanremo | 13 |
| 28/03 | Gent - Wevelgem | 48 |
| 04/04 | Ronde van Vlaanderen | 18 |
| Driedaagse van Antwerpen | ||
| 20/04 | Stage 1a | 23 |
| 20/04 | Stage 1b | 12 |
| 21/04 | Stage 2a | 15 |
| 22/04 | Stage 3a | 16 |
| 22/04 | Stage 3b | 4 |
| General Classification | 16 | |
| 25/04 | Paris - Bruxelles | 6 |
| 08/05 | La Flèche Wallonne | 3 |
Rider information for 1954
| Rank | 108 |
| Score | 514 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Bury |
| Date | Race | Rank |
| 03/04 | Gent - Wevelgem | 11 |
| Driedaagse van Antwerpen | ||
| 19/04 | Stage 1a | 18 |
| 20/04 | Stage 2 | 30 |
Rider information for 1955
| Rank | 436 |
| Score | 79 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Libertas - Girardengo - Huret |
| Date | Race | Rank |
| 18/03 | Elfstedenronde | 20 |
| Driedaagse van Antwerpen | ||
| 17/04 | Stage 1 | 25 |
| 18/04 | Stage 2a | 24 |
| 19/04 | Stage 3a | 27 |
| 19/04 | Stage 3b | 16 |
| General Classification | 27 | |
| 22/04 | Paris - Bruxelles | 17 |
| Ronde van Nederland | ||
| 13/08 | General Classification | 24 |
Rider information for 1956
| Rank | 282 |
| Score | 165 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Libertas - Huret |
| Date | Race | Rank |
| Paris - Nice | ||
| 17/03 | General Classification | 58 |
| 23/03 | Gent - Wevelgem | 17 |
Rider information for 1957
| Rank | 462 |
| Score | 63 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Groene Leeuw |
| Date | Race | Rank |
| 26/04 | La Flèche Wallonne | 32 |
| Ronde van Nederland | ||
| 22/06 | General Classification | 30 |
| G.P. Marvan | ||
| 23/08 | Stage 1 | 17 |
| 24/08 | Stage 2b | 18 |
| Volta Ciclista a Catalunya | ||
| 12/09 | Stage 7 | 4 |
| 14/09 | General Classification | 29 |
Rider information for 1958
| Rank | 332 |
| Score | 145 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Elvé - Peugeot - Marvan |
No results available in season 1959.
Rider information for 1959
| Rank | 926 |
| Score | 5 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Peugeot - BP - Dunlop |
No results available in season 1960.
Rider information for 1960
| Rank | 1517 |
| Score | 0 |
| Name | Jan DE VALCK |
| Country | Belgium |
| Team | Dr. Mann - Dossche Sport |