Len Duncan (Leonard Duncan)
b. 1911-07-25 - New York
d. 1988-08-01 - New York
| Constructor | Year | Pos | Points | Entered | Raced | Best | QP1 | Poles | P1 | P2 | P3 | Podiums | FLaps |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kurtis Kraft | 1956 | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Kurtis Kraft | 1955 | - | - | 3 | - | - | - | - | - | - | - | - | - |
| Schroeder | 1954 | - | - | 1 | 1 | 31 | - | - | - | - | - | - | - |
| Trevis | 1953 | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Schroeder | 1953 | - | - | 2 | - | - | - | - | - | - | - | - | - |
| - | 8 | 1 | 31 | - | - | - | - | - | - | - |