All available race results Eugène Le Royer
| Date | Race | Rank |
| 14/09 | Tour du Lac Léman | 5 |
Rider information for 1884
| Rank | 320 |
| Score | 0 |
| Name | Eugène LE ROYER |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| 18/07 | Genève - course de fond sur route | 1 |
| 30/08 | Genève - Grande Internationale | 3 |
Rider information for 1885
| Rank | 76 |
| Score | 54 |
| Name | Eugène LE ROYER |
| Country | Switzerland |
| Team | Bicycle Club de Genève |
| Date | Race | Rank |
| 04/07 | Genève - Coppet - Genève | 1 |
Rider information for 1886
| Rank | 176 |
| Score | 30 |
| Name | Eugène LE ROYER |
| Country | Switzerland |
| Team | Bicycle Club de Genève |
| Date | Race | Rank |
| 02/10 | Vevey - Grande Internationale | 3 |
| 03/10 | Championnat de l'Union Vélocipédique de la Suisse Romande | 1 |
Rider information for 1887
| Rank | 99 |
| Score | 56 |
| Name | Eugène LE ROYER |
| Country | Switzerland |
| Team | Bicycle Club de Genève |