Race | Winner | Track | Race Start | |
---|---|---|---|---|
1913 Chicago Automobile Club Trophy |
Emerson Fittipaldi Penske PC22 |
Elgin | 29th August 1913 | |
1914 Chicago Automobile Club Trophy |
Al Unser, Jr. Penske PC23 |
Elgin | 21st August 1914 | |
1915 Chicago Automobile Club Trophy |
Al Unser, Jr. Penske PC24 |
Elgin | 20th August 1915 |