All available race results Frans Leenen
| Date | Race | Rank |
| Dwars door België | ||
| 30/08 | Stage 1 | 10 |
Rider information for 1945
| Rank | 663 |
| Score | 2 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 17/03 | Omloop Het Volk | 12 |
| 12/05 | Ronde van Limburg | 11 |
Rider information for 1946
| Rank | 523 |
| Score | 26 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| Tour de Belgique | ||
| 13/05 | Stage 1 | 34 |
| 14/05 | Stage 2 | 30 |
| 15/05 | Stage 3 | 42 |
| 16/05 | Stage 4 | 31 |
| 17/05 | Stage 5 | 30 |
| 17/05 | General Classification | 25 |
| 01/06 | Ronde van Limburg | 5 |
| Zesprovincieënronde | ||
| 15/06 | General Classification | 21 |
| 20/07 | Liège - Vichte | 8 |
| G.P. des Routiers Prior | ||
| 08/08 | Stage 1b | 4 |
| 09/08 | Stage 2a | 10 |
Rider information for 1947
| Rank | 367 |
| Score | 88 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 17/03 | Omloop Het Volk | 5 |
| 11/04 | Paris - Bruxelles | 57 |
| 02/05 | Liège - Bastogne - Liège | 6 |
| 09/05 | Gent - Wevelgem | 26 |
| 11/07 | Ronde van Limburg | 24 |
Rider information for 1948
| Rank | 189 |
| Score | 268 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Elvé - Météore |
| Date | Race | Rank |
| 13/03 | Omloop Het Volk | 2 |
| 20/03 | Ronde van Limburg | 3 |
| 10/04 | Ronde van Vlaanderen | 23 |
| 17/04 | Paris - Roubaix | 3 |
| 24/04 | Paris - Bruxelles | 33 |
| Ronde van Nederland | ||
| 10/05 | Stage 5 | 6 |
| 14/05 | Stage 9a | 6 |
| 15/05 | General Classification | 10 |
| 25/05 | Bordeaux - Paris | 13 |
Rider information for 1949
| Rank | 84 |
| Score | 595 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Starnord - Wolber |
| Date | Race | Rank |
| 05/03 | Omloop Het Volk | 16 |
| 01/05 | La Flèche Wallonne | 29 |
| Ronde van Nederland | ||
| 24/05 | Stage 1 | 3 |
| 25/05 | Stage 2 | 8 |
| 26/05 | Stage 3 | 6 |
| 31/05 | General Classification | 9 |
| 21/07 | Bruxelles - Luxembourg - Mondorf | 13 |
Rider information for 1950
| Rank | 271 |
| Score | 203 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Starnord - Wolber |
| Date | Race | Rank |
| 11/03 | Omloop Het Volk | 40 |
| 01/04 | Ronde van Vlaanderen | 24 |
| 08/04 | Paris - Roubaix | 46 |
| 15/04 | Paris - Bruxelles | 51 |
Rider information for 1951
| Rank | 319 |
| Score | 108 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Starnord - Wolber |
| Date | Race | Rank |
| 09/03 | Omloop Het Volk | 26 |
| 23/03 | Ronde van Limburg | 7 |
Rider information for 1952
| Rank | 427 |
| Score | 67 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Royal Nord |
No results available in season 1953.
Rider information for 1953
| Rank | 1245 |
| Score | 1 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Van Hauwaert |
| Date | Race | Rank |
| 07/03 | Ronde van Limburg | 23 |
| 25/04 | Paris - Bruxelles | 61 |
Rider information for 1954
| Rank | 600 |
| Score | 30 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Plume Sport - Simplex |
No results available in season 1955.
Rider information for 1955
| Rank | 566 |
| Score | 43 |
| Name | Frans LEENEN |
| Country | Belgium |
| Team | Royal Nord |