List of all Montamarathon Fiesta Race (301-450ci Class) races held in AAA National Motor Car Championship championships
| Race | Winner | Track | Race Start | |
|---|---|---|---|---|
 |
1912 Montamarathon Fiesta Race (301-450ci Class) |
Bobby Unser Penske PC9B |
Tacoma | 5th July 1912 |