Paul Lehmann (125cc)
Alfredo Panella (175cc)
Cecil Ashby (250cc)
Wal Handley (350cc)
Wal Handley (500cc)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Meyrin Grand Prix Szwajcarii | 1928.07.29 | 125cc | Moser |  | |
| 2 | 175cc | Ladetto-Blatto | | |||
| 3 | 250cc | OK-Supreme | | |||
| 4 | 350cc | Motosacoche | | |||
| 5 | 500cc | Motosacoche | |