Races Statistics
| Entries | Les Leston | |||||
| Race | Constructor | Grid | Position | Laps | Reason | |
| 1956 | ||||||
| Italy | Connaught-Alta | 19 | Ret | 6 | suspension | |
| Race | Constructor | Grid | Position | Laps | Reason | |
| 1957 | ||||||
| Monaco | Cooper-Climax | Dnq | did not qualify | |||
| Britain | BRM | 12 | Ret | 44 | engine | |
| Entries | Les Leston | |||||
| Race | Constructor | Grid | Position | Laps | Reason | |
| 1956 | ||||||
| Italy | Connaught-Alta | 19 | Ret | 6 | suspension | |
| Race | Constructor | Grid | Position | Laps | Reason | |
| 1957 | ||||||
| Monaco | Cooper-Climax | Dnq | did not qualify | |||
| Britain | BRM | 12 | Ret | 44 | engine | |