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2021 Corn Belt 150 Presented by Premier Chevy Dealers crew chiefs Previous race results / Next race results                         Post IROC race number 14 of 22 Friday, July 9, 2021 at Knoxville Raceway, Knoxville, IA 150 laps* on a 0.500 mile dirt track (75.000 miles) Time of race: 2:25:55 Average speed: 36.802 mph Pole speed: n/a Cautions: 14 for 80 laps Margin of victory: 1.207 sec Attendance: n/a Lead changes: 20 Glossary    2021 IROC results   /   2021 standings

Crew Chiefs for this race: Nbr Driver Owner Car Crew Chief A note about crew chief data:   Crew chief data has been compiled from various sources and is unverified in some cases.  If you find an error or can fill in missing data please contact us.   Thanks!