April 2, 1955		South Mountain Speedway, Phoenix, AZ	AAA Midget	Jimmy Reece
March 31, 1956		South Mountain Speedway, Phoenix, AZ	USAC Midget	Johnnie Tolan
April 8, 1956		South Mountain Speedway, Phoenix, AZ	Sprint Car	Wayne Weiler
April 28, 1956		South Mountain Speedway, Phoenix, AZ	NASCAR Pacific Coast Late Model	Jim Reed
January 13, 1957		South Mountain Speedway, Phoenix, AZ	USAC Midget	Rex Easton