World of Outlaws NOS Energy Drink Sprint Car Series, Knoxville Raceway, Knoxville, Iowa, Aug. 14, 2021
E Main (11 laps): Jason Sides, Dylan Cisney, Jacob Allen, John Carney, Tyler Esh, Bobby Mincer, Kevin Ingle, Tori Knutson, Austin Miller, Davey Heskin.
D Main (12 laps): Jack Dover, Scotty Thiel, Dustin Selvage, Mark Dobmeier, Chad Kemenah, Jessie Attard, Jake Bubak, Don Droud Jr., Derek Hagar, Greg Wilson, Robbie Kendall, Ryan Roberts, Jordan Goldesberry, Jacob Allen, Jeff Swindell, Riley Goodno, T.J. Stutts, Jason Sides, Dylan Cisney, John Carney, Chris Martin, Tyler Esh, Bobby Mincer, Noah Gass.
C Main (15 laps): Hunter Schuerenberg, Ayrton Gennetten, Harli White, Sawyer Phillips, Carson McCarl, Tim Shaffer, Tim Kaeding, Marcus Dumesny, Roger Crockett, Clint Garner, Tasker Phillips, Mark Dobmeier, A.J. Moeller, Tanner Carrick, Colby Copeland, Jessie Attard, Dustin Selvage, Mike Wagner, Jack Dover, McKenna Haase, Chad Kemenah, Wayne Johnson, Terry McCarl, Scotty Thiel.
B Main (22 laps): Carson Macedo, Kerry Madsen, Cory Eliason, Sheldon Haudenschild, Spencer Bayston, Shane Golobic, Kraig Kinser, Scott Bogucki, Davey Heskin, Sam Hafertepe Jr., Bill Balog, Lynton Jeffrey, Sawyer Phillips, Ayrton Gennetten, Sye Lynch, Daryn Pittman, Hunter Schurenberg, Josh Schneiderman, Josh Baughman, Sammy Swindell, Zeb Wise, Kyle Reinhardt, Harli White, Jac Haudenschild.
Feature (50 laps): Kyle Larson, Donny Schatz, Brad Sweet, Gio Scelzi, Logan Schuchart, Brent Marks, James McFadden, Kasey Kahne, Carson Macedo, Sheldon Haudenschild, Kerry Madsen, Brooke Tatnell, Justin Peck, Shane Stewart, Brock Zearfoss, Ian Madsen, Anthony Macri, David Gravel, Brian Brown, Tyler Courtney, Cory Eliason, Justin Henderson, Rico Abreu.