August 26, 1910	Illinois Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Al Livingstone
August 27, 1910	Elgin National Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Ralph Mulford
August 25, 1911	Illinois Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Don Herr
August 26, 1911	Elgin National Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Len Zengel
August 30, 1912	Illinois National Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Charlie Merz
August 31, 1912	Elgin Trophy	Elgin Road Race Circuit, Elgin, IL	AAA Indy Car	Ralph DePalma