October 2, 1912	William K. Vanderbilt Cup	Wauwatosa Road Race Course, Wauwatosa, WI	AAA Indy Car	Ralph DePalma
October 3, 1912	Pabst Blue Ribbon Trophy	Wauwatosa Road Race Course, Wauwatosa, WI	AAA Indy Car	Mortimer Roberts
October 5, 1912	American Grand Prize	Wauwatosa Road Race Course, Wauwatosa, WI	ACA Indy Car	Caleb Bragg