Taking on a pair of historic ovals this weekend, the American Sprint Car Series presented by RacinDirt.com will headline action at Thunderbird Speedwa.
The United States Racing Association (USRA) was formed with a mission of growing local and regional dirt track racing for the future through cost-effective rules that do not hinder creativity, increased fan attendance at member tracks and lucrative sponsorship for each USRA member track. The USRA sanctions four divisions: Modifieds, Stock Cars, B-Mods and Hobby Stocks. Thousands of men and women compete in USRA events on any given weekend at the finest dirt oval speedways in America.
The United States Racing Association (USRA) was formed with a mission of growing local and regional dirt track racing for the future through cost-effective rules that do not hinder creativity, increased fan attendance at member tracks and lucrative sponsorship for each USRA member track. The USRA sanctions four divisions: Modifieds, Stock Cars, B-Mods and Hobby Stocks. Thousands of men and women compete in USRA events on any given weekend at the finest dirt oval speedways in America.