Arrow McLaren 2024 Iowa Speedway Doubleheader Race Preview Iowa Speedway Race dates: Saturday, July 13 & Sunday, July 14 Rounds: 11/18 & 12/18 Total laps: Total race distance: Length: 0.875 mi/1.41 km Number of turns: 4 Session start times: TUNE IN: Saturday, 7:00 p.m. CST & Sunday, 11:00 a.m. CST on NBC Pato O’Ward, No.