All available race results Léon Bastin
| Date | Race | Rank |
| 15/05 | Circuit Aisne-Oise | 20 |
Rider information for 1921
| Rank | 1031 |
| Score | 0 |
| Name | Léon BASTIN |
| Country | France |
| Team | Individual |
| Date | Race | Rank |
| 15/05 | Circuit Aisne-Oise | 20 |
| Rank | 1031 |
| Score | 0 |
| Name | Léon BASTIN |
| Country | France |
| Team | Individual |