The All Star Circuit of Champions (abbreviated ASCoC), officially known as the Ollie's Bargain Outlet All Star Circuit of Champions presented by Mobil 1 for naming rights reasons, is an American motorsports sanctioning body of winged sprint car racing founded in 1970. The series sanctions 410ci sprint car races in several states. On average the series runs 50 races per year, starting February and ending in October each year. The ASCoC was purchased by Tony Stewart in the winter of 2015.