All available race results Guillaume Lonneux
| Date | Race | Rank |
| 05/05 | Liège - Bastogne - Liège | 17 |
Rider information for 1932
| Rank | 299 |
| Score | 79 |
| Name | Guillaume LONNEUX |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| Tour de Belgique | ||
| 17/05 | Stage 1 | 48 |
| 25/05 | Liège - Bastogne - Liège | 11 |
Rider information for 1933
| Rank | 242 |
| Score | 107 |
| Name | Guillaume LONNEUX |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 18/03 | Ronde van Vlaanderen | 45 |
Rider information for 1934
| Rank | 1063 |
| Score | 6 |
| Name | Guillaume LONNEUX |
| Country | Belgium |
| Team | Individual |