Iowa Speedway Doubleheader practice report Iowa Speedway Practice date: Friday, July 12 Rounds: 11/18 & 12/18 Total laps: 250 laps Total race distance: 223.5 mi/359.69 km Length: 0.875 mi/1.41 km Number of turns: 4 Session start times: Qualifying: Saturday, 2:45 p.m. – 3:45 p.m. CST Race 1: Saturday, 7:06 p.m. CST Race 2: Sunday, 11:30 a.m. CST TUNE IN: Saturday, 7:00 p.m. CST & Sunday,…