Year
1912
| Date | Circuit | Category | Winner |
|---|---|---|---|
| 30.05.1912 | Indianapolis Motor Speedway | Champcars | Joe Dawson |
| 05.10.1912 | Wauwatosa Road Race Course | Champcars | Caleb Bragg |
| Date | Circuit | Category | Winner |
|---|---|---|---|
| 30.05.1912 | Indianapolis Motor Speedway | Champcars | Joe Dawson |
| 05.10.1912 | Wauwatosa Road Race Course | Champcars | Caleb Bragg |