StatisticsGPs'2612-Y''2816'
| Races | 2 |
| Drivers' Titles | 0 |
| Constructors' Titles | 0 |
| Victories | 0 |
| Poles | 0 |
| Fastest Laps | 0 |
| Podiums | 0 |
| Points | 0 |
| Laps | 79 |
| Laps Led | 7 |
| One/two finishes | 0 |
| Year | Race | Nr | Driver | Team | CH | Engine | Tyre | Gr | Ps | FL | Laps | Led | Retired | Pts | Formula | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 1929 | MONZA | 18 | Leon Duray | Leon Duray | 2816 | Miller L8C 1.6 | - | 0 | DNQF | 0 | Engine bearings | 0 | GP | ||
| 18 | Edmond Bourlier | Leon Duray | 2816 | Miller L8C 1.6 | - | 0 | DNS | 0 | DNS | 0 | GP | |||||
| 21 | Leon Duray | Leon Duray | 2612-Y | Miller L8C 1.5 | - | 0 | DNQF | 0 | Engine bearings | 0 | GP | |||||
| 1 | 1929 | 500 | 18 | Ralph Hepburn | Leon Duray | 2816 | Miller L8C 1.5 | - | 3 | DNF | 14 | Transmission | 0 | GP | ||
| 21 | Ralph Hepburn | Leon Duray | 2612-Y | Miller L8C 1.5 | - | 0 | DNF | 24 | Carburetor | 0 | GP | |||||
| 21 | Leon Duray | Leon Duray | 2612-Y | Miller L8C 1.5 | - | 2 | DNF | 41 | 7 | Carburetor | 0 | GP |
| Year | Race | Nr | Driver | Team | Car | Engine | Tyre | Gr | Ps | FL | Laps | Led | Retired | Pts | Formula | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1929 | MONZA | 21 | Leon Duray | Leon Duray | Miller Packard Cable FD | Miller L8C 1.5 | - | 0 | DNQF | 0 | Engine bearings | 0 | GP | ||
| 3 | 1929 | 500 | 21 | Leon Duray | Leon Duray | Miller Packard Cable FD | Miller L8C 1.5 | - | 2 | DNF | 41 | 7 | Carburetor | 0 | GP | |
| 21 | Ralph Hepburn | Leon Duray | Miller Packard Cable FD | Miller L8C 1.5 | - | 0 | DNF | 24 | Carburetor | 0 | GP | |||||
| 2 | 1928 | 500 | 4 | Leon Duray | Leon Duray | Miller FD | Miller L8C 1.5 | Firestone | 1 | DNF | 91 | 59 | Overheating | 0 | GP | |
| 4 | Cliff Bergere | Leon Duray | Miller FD | Miller L8C 1.5 | Firestone | 0 | DNF | 42 | Overheating | 0 | GP | |||||
| 1 | 1927 | 500 | 12 | Leon Duray | Leon Duray | Miller FD | Miller L8C 1.5 | Firestone | 3 | DNF | 27 | Fuel leak | 0 | GP |
| Year | Race | Nr | Driver | Team | Car | Engine | Tyre | Gr | Ps | FL | Laps | Led | Retired | Pts | Formula | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 1929 | MONZA | 18 | Edmond Bourlier | Leon Duray | Miller Packard Cable FD | Miller L8C 1.6 | - | 0 | DNS | 0 | DNS | 0 | GP | ||
| 18 | Leon Duray | Leon Duray | Miller Packard Cable FD | Miller L8C 1.6 | - | 0 | DNQF | 0 | Engine bearings | 0 | GP | |||||
| 2 | 1929 | 500 | 18 | Ralph Hepburn | Leon Duray | Miller Packard Cable FD | Miller L8C 1.5 | - | 3 | DNF | 14 | Transmission | 0 | GP | ||
| 1 | 1928 | 500 | 16 | Ralph Hepburn | Harry A. Miller | Miller FD | Miller L8C 1.5 | Firestone | 6 | DNF | 48 | Timing gears | 0 | GP |