Mario Vaga (175cc)
Jock Porter (250cc)
Tazio Nuvolari (350cc)
Mario Revelli (500cc)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Monza | 1925.09.13 | 175cc | Maffeis - Blackburne |  | |
| 2 | 250cc | New Gerrard | | |||
| 3 | 350cc | Bianchi | | |||
| 4 | 500cc | GR - JAP | |