Chicagoland Speedway
…formerly hosted a NASCAR Truck Series race last known as the Camping World 225 alongside another standalone NASCAR O'Reilly Series race last known as the Owens Corning AttiCat 300. From 2001 to 2010, Chicagoland Speedway hosted one annual IndyCar Series weekend: the Peak Antifreeze Indy 300. In 2006, the race was moved to become…