| Year | Winner | Grand Prix | Race Start |
|---|---|---|---|
| 1912 |
Mercer Automobile Co
? 1912 Eddie Pullen |
Montamarathon Fiesta Race (231-300ci Class) | 5th July 1912 |
| 1912 |
Stutz
? 1912 Earl Cooper |
Montamarathon Fiesta Race (301-450ci Class) | 5th July 1912 |
| 1912 |
EE Hewlett
S74 Teddy Tetzlaff |
Montamarathon Fiesta Race (Over 450ci Class) | 5th July 1912 |
| 1912 |
EE Hewlett
S74 Teddy Tetzlaff |
Montamarathon Trophy | 6th July 1912 |
| 1913 |
![]() Ideal Motor Co ? 1913 Earl Cooper |
Potlatch Trophy | 5th July 1913 |
| 1913 |
![]() Ideal Motor Co ? 1913 Earl Cooper |
Montamarathon Trophy | 7th July 1913 |
| Name | Wins | Poles | Points |
|---|---|---|---|
| Earl Cooper | 3 | 3 | 1250 |
| Teddy Tetzlaff | 2 | 1 | 900 |
| Eddie Pullen | 1 | 1 | 300 |
| Name | Wins | Poles | Points |
|---|---|---|---|
| EE Hewlett | 2 | 1 | 900 |
| Ideal Motor Co | 2 | 2 | 900 |
| Mercer Automobile Co | 1 | 2 | 300 |
Fiat
Wisconsin
Wisconsin
Mercer
Wisconsin
National
Benz
Hudson
Fiat
Apperson
Locomobile
Mercedes
Nyberg
Interstate
Fiat
Benz
Knox
Hartford
National
Cole