All available race results Léon Scieur
| Date | Race | Rank |
| Tour de Belgique amateur | ||
| 07/08 | Stage 1 | 21 |
| 15/08 | General Classification | 16 |
Rider information for 1910
| Rank | 1199 |
| Score | 0 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 16/04 | Bruxelles - Liège | 43 |
| 12/06 | Liège - Bastogne - Liège | 10 |
| 02/07 | Trophée Belge | 7 |
| 15/08 | Bruxelles - Esneux | 6 |
Rider information for 1911
| Rank | 153 |
| Score | 139 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 14/04 | Antwerpen - Menen | 16 |
Rider information for 1912
| Rank | 305 |
| Score | 47 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 09/03 | Etoile Carolorégienne | 3 |
| 23/03 | Paris - Roubaix | 25 |
| 06/04 | Paris - Tours | 10 |
| 20/04 | Paris - Menin | 12 |
| Tour de Belgique | ||
| 27/04 | Stage 1 | 25 |
| 01/05 | Stage 3 | 4 |
| 04/05 | Stage 4 | 4 |
| 06/05 | Stage 5 | 6 |
| 08/05 | Stage 6 | 7 |
| 11/05 | Stage 7 | 1 |
| General Classification | 4 | |
| Tour de France | ||
| 29/06 | Stage 1 | 33 |
| 01/07 | Stage 2 | 31 |
| 03/07 | Stage 3 | 19 |
| 05/07 | Stage 4 | 35 |
| 07/07 | Stage 5 | 35 |
| 09/07 | Stage 6 | 26 |
| 18/08 | Bruxelles - Oupeye | 5 |
| 21/09 | Tour du Hainaut | 3 |
Rider information for 1913
| Rank | 54 |
| Score | 592 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Armor - Soly |
| Date | Race | Rank |
| 12/04 | Paris - Roubaix | 37 |
| Tour de Belgique | ||
| 26/04 | Stage 1 | 15 |
| 28/04 | Stage 2 | 25 |
| 30/04 | Stage 3 | 3 |
| 03/05 | Stage 4 | 6 |
| 05/05 | Stage 5 | 8 |
| 07/05 | Stage 6 | 6 |
| 10/05 | Stage 7 | 10 |
| General Classification | 5 | |
| 25/05 | Championnat de Belgique sur route | 4 |
| Tour de France | ||
| 28/06 | Stage 1 | 24 |
| 30/06 | Stage 2 | 15 |
| 02/07 | Stage 3 | 16 |
| 04/07 | Stage 4 | 36 |
| 06/07 | Stage 5 | 27 |
| 08/07 | Stage 6 | 60 |
| 10/07 | Stage 7 | 11 |
| 12/07 | Stage 8 | 47 |
| 14/07 | Stage 9 | 19 |
| 16/07 | Stage 10 | 13 |
| 18/07 | Stage 11 | 16 |
| 20/07 | Stage 12 | 19 |
| 22/07 | Stage 13 | 21 |
| 24/07 | Stage 14 | 15 |
| 26/07 | Stage 15 | 15 |
| General Classification | 14 |
Rider information for 1914
| Rank | 27 |
| Score | 922 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Thomann - Soly |
| Date | Race | Rank |
| 20/04 | Paris - Roubaix | 13 |
| 15/06 | Paris - Bruxelles | 9 |
| Tour de France | ||
| 29/06 | Stage 1 | 5 |
| 01/07 | Stage 2 | 19 |
| 03/07 | Stage 3 | 13 |
| 05/07 | Stage 4 | 6 |
| 07/07 | Stage 5 | 3 |
| 09/07 | Stage 6 | 6 |
| 11/07 | Stage 7 | 6 |
| 13/07 | Stage 8 | 3 |
| 15/07 | Stage 9 | 5 |
| 17/07 | Stage 10 | 5 |
| 19/07 | Stage 11 | 4 |
| 21/07 | Stage 12 | 3 |
| 23/07 | Stage 13 | 3 |
| 25/07 | Stage 14 | 2 |
| 27/07 | Stage 15 | 4 |
| General Classification | 4 | |
| 07/09 | Championnat de Belgique sur route | 7 |
Rider information for 1919
| Rank | 8 |
| Score | 1973 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | La Sportive |
| Date | Race | Rank |
| 06/06 | Liège - Bastogne - Liège | 1 |
| 13/06 | Paris - Bruxelles | 11 |
| 20/06 | Championnat de Belgique sur route | 7 |
| Tour de France | ||
| 27/06 | Stage 1 | 10 |
| 29/06 | Stage 2 | 18 |
| 01/07 | Stage 3 | 8 |
| 03/07 | Stage 4 | 16 |
| 05/07 | Stage 5 | 10 |
| 07/07 | Stage 6 | 5 |
| 09/07 | Stage 7 | 3 |
| 11/07 | Stage 8 | 4 |
| 13/07 | Stage 9 | 3 |
| 15/07 | Stage 10 | 5 |
| 17/07 | Stage 11 | 1 |
| 19/07 | Stage 12 | 8 |
| 21/07 | Stage 13 | 7 |
| 23/07 | Stage 14 | 5 |
| 25/07 | Stage 15 | 7 |
| General Classification | 4 |
Rider information for 1920
| Rank | 4 |
| Score | 2289 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | La Française |
| Date | Race | Rank |
| 27/03 | Paris - Roubaix | 3 |
| 24/04 | Paris - Dinant | 5 |
| 29/05 | Liège - Bastogne - Liège | 6 |
| 12/06 | Championnat de Belgique sur route | 10 |
| Tour de France | ||
| 26/06 | Stage 1 | 3 |
| 28/06 | Stage 2 | 2 |
| 30/06 | Stage 3 | 1 |
| 02/07 | Stage 4 | 8 |
| 04/07 | Stage 5 | 2 |
| 06/07 | Stage 6 | 3 |
| 08/07 | Stage 7 | 5 |
| 10/07 | Stage 8 | 4 |
| 12/07 | Stage 9 | 3 |
| 14/07 | Stage 10 | 1 |
| 16/07 | Stage 11 | 6 |
| 18/07 | Stage 12 | 3 |
| 20/07 | Stage 13 | 11 |
| 22/07 | Stage 14 | 8 |
| 24/07 | Stage 15 | 18 |
| General Classification | 1 |
Rider information for 1921
| Rank | 5 |
| Score | 2914 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | La Française |
| Date | Race | Rank |
| 16/04 | Paris - Roubaix | 8 |
| 30/04 | Paris - Tours | 30 |
| Paris - Saint-Etienne | ||
| 03/06 | Stage 1 | 24 |
| 18/06 | Championnat de Belgique sur route | 5 |
| Tour de France | ||
| 25/06 | Stage 1 | 6 |
| 27/06 | Stage 2 | 17 |
| Circuit du Midi | ||
| 15/07 | Stage 2 | 8 |
| 16/07 | General Classification | 7 |
| 08/10 | Grand Prix Wolber | 3 |
Rider information for 1922
| Rank | 60 |
| Score | 531 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | La Française |
| Date | Race | Rank |
| 01/04 | Paris - Roubaix | 42 |
| 13/05 | Paris - Tours | 18 |
| Paris - Saint-Etienne | ||
| 20/05 | Stage 1 | 12 |
| Tour de France | ||
| 24/06 | Stage 1 | 5 |
| 26/06 | Stage 2 | 9 |
| 28/06 | Stage 3 | 9 |
| 30/06 | Stage 4 | 12 |
| 02/07 | Stage 5 | 13 |
| 04/07 | Stage 6 | 35 |
| Circuit de Champagne | ||
| 22/09 | Stage 1 | 6 |
| 23/09 | Stage 2 | 7 |
| 23/09 | General Classification | 4 |
Rider information for 1923
| Rank | 55 |
| Score | 603 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | La Française |
| Date | Race | Rank |
| 06/04 | Paris - Roubaix | 31 |
| Tour de Belgique | ||
| 20/04 | Stage 1 | 44 |
| 21/04 | Stage 2 | 44 |
| Tour de France | ||
| 22/06 | Stage 1 | 10 |
| 24/06 | Stage 2 | 25 |
| 26/06 | Stage 3 | 9 |
| 28/06 | Stage 4 | 30 |
| 30/06 | Stage 5 | 12 |
Rider information for 1924
| Rank | 121 |
| Score | 259 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Wonder - Cycles Russell |
| Date | Race | Rank |
| Tour de Belgique | ||
| 19/04 | Stage 1 | 7 |
| 03/05 | Paris - Tours | 13 |
Rider information for 1925
| Rank | 248 |
| Score | 87 |
| Name | Léon SCIEUR |
| Country | Belgium |
| Team | Individual |