| GARA | N. | PILOTA | SCUDERIA | MODELLO | MOTORE | POS |
| III Gran Premio di Siracusa | 4 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | 2 |
| XIV Grand Prix Automobile de Pau | 26 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | 6 |
| 28 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | 4 |
| II Grand Prix de Bordeaux | 30 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | dsq |
| 32 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | 5 |
| V Daily Express International Trophy | 16 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | ab |
| VII Ulster Trophy | 14 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | 5 |
| XV Grand Prix d’Albi | 8 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | ab |
| III Grand Prix de Rouen-les-Essarts | 34 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | ab |
| V Circuit du Lac | 10 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | f |
| 12 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | 1 |
| III Grand Prix des Sables d’Olonne | 10 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | 2 |
| 20 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | ab |
| V Grand Prix de Cadours | 4 | Elie BAYOL | Privato | OSCA 20 | OSCA L6 | ab |
| V Gran Premio di Modena | 32 | Louis CHIRON | Privato | OSCA 20 | OSCA L6 | 5 |
