September 4, 1950		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Alex Erickson
May 27, 1951		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Bill Harrison
August 15, 1951		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	J.M. Wilson
August 19, 1951		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Art Combs
June 1, 1952		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Ralph Dyer
August 17, 1952		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Wally Dahl
May 31, 1953		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Don White
August 15, 1953		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Ernie Derr
August 14, 1954		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Don White
August 13, 1955		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Herschel Buchanan
August 11, 1956		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Johnny Beauchamp
August 10, 1957		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Johnny Beauchamp
June 29, 1958		North Iowa Fairgrounds, Mason City, IA	IMCA Stock Car	Bob Burdick
June 19, 2016		North Iowa Fairgrounds, Mason City, IA	NSL 410 Sprint Car	Danny Lasoski