Monte Mario, Rome, Italy
Circuit Type: Temporary street circuit
Extension: 10,6 Km
Lap Record: 6:13.0
Year: 1925
Driver: Emilio Materassi
Car: Itala Special
Speed: 102,5 Km/h
| Year | Official Name | Date | Winning Driver | Constructor | Laps | Time | Formula |
|---|---|---|---|---|---|---|---|
| 1925 | I Reale Premio di Roma | February 22 |  Carlo Masetti |
 Bugatti |
40 |
04:21:29.600 | GP |