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2021 Chevrolet Detroit Grand Prix Previous race results / Next race results                         Post IROC race number 4 of 12 Saturday, June 12, 2021 at The Raceway at Belle Isle, Belle Isle, MI 66 laps on a 2.350 mile street course (155.100 miles) Time of race: 1:40:02.674 Average speed: 93.019 mph Pole speed: 80.031 mph Cautions: 2 for 7 laps Margin of victory: .573 sec Attendance: n/a Lead changes: 2 Glossary    2021 IROC results   /   2021 standings

Pos St Class # Driver Team Sponsor Car Laps Status Led Pts

Fastest Lap: 80.492 seconds by Felipe Nasr Caution flag breakdown: Condition From Lap To Lap # Of Laps Reason Free Pass 1 4 4     5 8 4   #28,88 accident turn 5   9 61 53     62 64 3   #96 stalled backstretch   65 66 2       Percent of race run under caution: 10.6%             Average green flag run: 19.7 laps Lap leader breakdown: Leader From Lap To Lap # Of Laps   #01 1 33 33   #10 34 35 2   #01 36 66 31