Now with lights and night racing, this is Chicago's home to NASCAR every July and Indy Cars every September.. In Short When the boys of NASCAR arrive each July, you can expect every one of the 75,000 seats to be filled, so be sure to get your tickets early. If you want to avoid the huge crowds, try Pole Day on Thursday (July 10, 2008) of NASCAR weekend for practice and qualifying--general admission seating for just $15. Friday (July 11) is highlighted by the 300-mile Nationwide Series race, while the main event is Saturday's (July 12) Sprint Cup Lifelock 400--both will at night for the first time this year. Danica Patrick and her fellow Indy Car drivers arrive for an action-packed weekend on Sept. 7, 2008.