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2025 Iowa Corn 350 pit stop data Previous race results / Next race results                     Previous at this track     Post NASCAR Cup Series race number 23 of 36 Sunday, August 3, 2025 at Iowa Speedway, Newton, IA 350 laps on a 0.875 mile paved track (306.250 miles) Time of race: 3:17:47 Average speed: 92.905 mph Pole speed: 136.933 mph Cautions: 12 for 72 laps Margin of victory: 1.192 sec Attendance: n/a Lead changes: 10 Green flag passes: 2,861 (10.3 per green flag lap) (Source: NASCAR loop data) Glossary    2025 NASCAR Cup Series results   /   2025 standings

Pit stop data for this race: Nbr # Stops Driver Laps Total Time Average Time Data not available. All times are shown in seconds.     * - includes time spent in garage.