Year
1940
| Date | Circuit | Category | Winner |
|---|---|---|---|
| 30.05.1940 | Indianapolis Motor Speedway | Champcars | Wilbur Shaw |
| 02.09.1940 | New York State Fairgrounds | Champcars | Rex Mays |
| Date | Circuit | Category | Winner |
|---|---|---|---|
| 30.05.1940 | Indianapolis Motor Speedway | Champcars | Wilbur Shaw |
| 02.09.1940 | New York State Fairgrounds | Champcars | Rex Mays |