A crew member sprays down a car during FVP Friday Hard Knox Prelim Night of the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys at Knoxville Raceway in Knoxville, Iowa on Friday, Aug. 13, 2021.
Ayrton Gennetten (3) rides into turn three during FVP Friday Hard Knox Prelim Night of the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys at Knoxville Raceway in Knoxville, Iowa on Friday, Aug. 13, 2021.
Hunter Schuerenberg (55) races during FVP Friday Hard Knox Prelim Night of the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys at Knoxville Raceway in Knoxville, Iowa on Friday, Aug. 13, 2021.
Austin McCarl (17a) crashes into the wall during FVP Friday Hard Knox Prelim Night of the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys at Knoxville Raceway in Knoxville, Iowa on Friday, Aug. 13, 2021.
The sun shines behind the wing of Brad Sweet (49), of Grass Valley, California, during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
A general view of the Knoxville Raceway frontstretch grandstands during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Jacee Wren, originally from Bryan, Texas but now living in Iowa, carries a sparkling American Flag on horseback during the National Anthem prior to the start of the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Carson Macedo (41), of Lemoore, California, during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Brad Sweet (49), of Grass Valley, California, during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Kyle Larson (57), of Elk Grove, California, watches heat racing action from the pits during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Kasey Kahne (83), of Enumclaw, Washington, during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
The field lines up four-wide before the start of the A-main feature of the the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Crews rush to Brian Brown (21), of Grain Valley, Missouri, after a crash during the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Kyle Larson (57), of Elk Grove, California, celebrates winning the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Kyle Larson (57), of Elk Grove, California, celebrates winning the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.
Kyle Larson (57), of Elk Grove, California, celebrates with his son after winning the 60th Annual NOS Energy Drink Knoxville Nationals presented by Caseys Championship Night at Knoxville Raceway in Knoxville, Iowa on Saturday, Aug. 14, 2021.