All available race results Leon van Aken
| Date | Race | Rank |
| 21/03 | Ronde van Vlaanderen | 16 |
| 26/04 | Vilvoorde - De IJzer - Vilvoorde | 21 |
| Tour de Belgique | ||
| 23/05 | Stage 1 | 28 |
| 25/05 | Stage 2 | 13 |
| 27/05 | Stage 3 | 19 |
| 29/05 | Stage 4 | 17 |
| 30/05 | Stage 5 | 13 |
| 30/05 | General Classification | 16 |
| Tour de France | ||
| 27/06 | Stage 1 | 76 |
| 29/06 | Stage 2 | 47 |
| 01/07 | Stage 3 | 54 |
Rider information for 1920
| Rank | 100 |
| Score | 178 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 13/03 | Ronde van Vlaanderen | 19 |
| Tour de Belgique | ||
| 01/05 | Stage 1 | 43 |
| 03/05 | Stage 2 | 23 |
| 05/05 | Stage 3 | 25 |
| 07/05 | Stage 4 | 18 |
| 08/05 | Stage 5 | 17 |
| 08/05 | General Classification | 17 |
| 19/09 | Omloop der 3 Zustersteden | 6 |
Rider information for 1921
| Rank | 129 |
| Score | 157 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 19/03 | Ronde van Vlaanderen | 5 |
| Tour de Belgique | ||
| 02/04 | Stage 1 | 6 |
| 06/04 | Stage 3 | 12 |
| 08/04 | Stage 4 | 12 |
| 09/04 | Stage 5 | 12 |
| 09/04 | General Classification | 7 |
| 23/04 | Oostende - Antwerpen | 15 |
| Tour de France | ||
| 25/06 | Stage 1 | 31 |
| 27/06 | Stage 2 | 48 |
| 29/06 | Stage 3 | 30 |
| 01/07 | Stage 4 | 42 |
| 03/07 | Stage 5 | 19 |
| 05/07 | Stage 6 | 21 |
| 07/07 | Stage 7 | 37 |
| 09/07 | Stage 8 | 28 |
| 11/07 | Stage 9 | 27 |
| 13/07 | Stage 10 | 38 |
| 15/07 | Stage 11 | 11 |
| 17/07 | Stage 12 | 24 |
| 19/07 | Stage 13 | 34 |
| 21/07 | Stage 14 | 28 |
| 23/07 | Stage 15 | 31 |
| General Classification | 28 |
Rider information for 1922
| Rank | 52 |
| Score | 480 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| Tour de Belgique | ||
| 29/04 | Stage 1 | 21 |
| 01/05 | Stage 2 | 41 |
| 03/05 | Stage 3 | 31 |
| 05/05 | Stage 4 | 34 |
| Tour de France | ||
| 24/06 | Stage 1 | 45 |
| 26/06 | Stage 2 | 24 |
| 28/06 | Stage 3 | 23 |
| 30/06 | Stage 4 | 25 |
| 02/07 | Stage 5 | 7 |
| 04/07 | Stage 6 | 39 |
| 06/07 | Stage 7 | 18 |
| 08/07 | Stage 8 | 36 |
| 10/07 | Stage 9 | 32 |
| 12/07 | Stage 10 | 28 |
| 14/07 | Stage 11 | 30 |
Rider information for 1923
| Rank | 191 |
| Score | 116 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Wonder - Dunlop |
| Date | Race | Rank |
| 18/03 | Ronde van Vlaanderen | 16 |
| Tour de Belgique | ||
| 20/04 | Stage 1 | 6 |
| 21/04 | Stage 2 | 36 |
| 24/04 | Stage 3 | 28 |
| 26/04 | Stage 4 | 17 |
| 27/04 | Stage 5 | 18 |
| 27/04 | General Classification | 19 |
| 11/05 | Groote Scheldeprijs | 4 |
| 01/06 | Paris - Bruxelles | 9 |
Rider information for 1924
| Rank | 96 |
| Score | 328 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 29/03 | Ronde van Vlaanderen | 21 |
| 12/04 | Paris - Roubaix | 54 |
| 30/07 | Bruxelles - Paris | 13 |
Rider information for 1925
| Rank | 239 |
| Score | 96 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | La Française |
No results available in season 1926.
Rider information for 1926
| Rank | 574 |
| Score | 20 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | La Française - Diamant - Dunlop |
| Date | Race | Rank |
| 03/04 | Ronde van Vlaanderen | 21 |
| 31/07 | Omloop van Noord-België | 19 |
Rider information for 1927
| Rank | 359 |
| Score | 64 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | La Française |
| Date | Race | Rank |
| 29/07 | Omloop van Noord-België | 9 |
Rider information for 1928
| Rank | 784 |
| Score | 14 |
| Name | Leon VAN AKEN |
| Country | Belgium |
| Team | Individual |