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:  Races 1 & 2: 250 laps Total race distance:  Races 1 & 2: 223.5 mi/359.69 km Length: 0.875 mi/1.41 km Number of turns: 4 Session start times:  Practice 1: Friday,…