WIDE OPEN SPEED WEEK. The Sprint Invader Tour starts the week on Tuesday at West Liberty Raceway. Gates open at 4pm, Hot Laps at 6:30. The July 4, Independence Day show moves to 34 Raceway in Burlington, Iowa. Gates open at 4:30,Hot Laps at 6:30. Friday, July,6 finds the tour making a stop at Lee County Speedway, for a date at the Lee County Fair. Gates open at 5:30, Hot Laps at 6:30.