Info
| Last name | Leoni |
| First name | Adolfo |
| Nationality |  Italy |
| Date of birth | 13-01-1917 |
| Place of birth | Gualdo Tadino |
| Passed away | 19-10-1970 |
| Age when passed away | 53 |
| Place of passing | Massa |
Monuments
Grand tours
| Year | Giro d'Italia | Tour de France | Vuelta a España |
|---|---|---|---|
| 1949 | 4th | - | - |
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 20-08 | DNF |  UCI World Championship Moorslede (CM) | |||||
 Tour de France (GT) | |||||||
| 14-07 | 1 | Stage 2Metz - Liège (241.0km) | |||||
| Giro d'Italia (2.HC) | |||||||
| 05-06 | 1 | Stage 11Milano - Ferrara (251.0km) | |||||