All available race results Umberto Lorenzi
No results available in season 1930.
Rider information for 1930
| Rank | 1086 |
| Score | 2 |
| Name | Umberto LORENZI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 25/10 | Giro di Lombardia | 14 |
Rider information for 1931
| Rank | 230 |
| Score | 94 |
| Name | Umberto LORENZI |
| Country | Italy |
| Team | Individual |