Photo Gallery: 2018 Knoxville Nationals Thursday Night Preliminary Event Knoxville Nationals, Knoxville Raceway, Media Gallery, Photo Gallery, World of Outlaws Brad Sweet (Serena Dalhamer photo) Rico Abreu, Brad Sweet, David Gravel, and Doug Clark (Serena Dalhamer photo) David Gravel (Serena Dalhamer photo) Rico Abreu (Serena Dalhamer photo) David Gravel (5) and Tim Kaeding (3) (Serena Dalhamer photo) (Serena Dalhamer photo) Wayne Johnson (Serena Dalhamer photo) Tom Harris (Serena Dalhamer photo) Brad Sweet (Serena Dalhamer photo) Parade lap on Thursday at the Knoxville Nationals. (Mark Funderburk photo) Brad Sweet. (Mark Funderburk photo) Jason Johnson. (Mark Funderburk photo) Chad Kemenah. (Mark Funderburk photo) David Gravel. (Mark Funderburk photo) (l to r) Third place David Gravel, winner Brad Sweet, and second place Rico Abreu. (Mark Funderburk photo) Jacob Allen. (Mark Funderburk photo) Tim Kaeding (#3) and John Carney (#7). (Mark Funderburk photo) Rico Abreu (#24) and Mark Dobmeier (#13). (Mark Funderburk photo) Kraig Kinser (#11K) and Cory Eliason (#83). (Mark Funderburk photo) David Gravel (#5) and Terry McCarl (#24). (Mark Funderburk photo) Jamie Veal (#35) and Sammy Swindell (#1). (Mark Funderburk photo) Shane Stewart (#2) and Carson Macedo (#41). (Mark Funderburk photo) Sammy Swindell (#1) and Harli White (17W). (Mark Funderburk photo) Sammy Swindell (#1) and Brad Sweet (#49). (Mark Funderburk photo) Terry McCarl (#24) and Chad Kemenah. (#10H). (Mark Funderburk photo) Parker Price-Miller (#71) and Wayne Johnson (#2C). (Mark Funderburk photo) Carson Macedo (#41) and Cory Eliason (#83). (Mark Funderburk photo) Spencer Bayston (#39) and Sam Hafertepe Jr. (#15H). (Mark Funderburk photo) Jacob Allen (#1A) and Shane Stewart (#2). (Mark Funderburk photo) Rico Abreu. (Mark Funderburk photo) Brad Sweet. (Mark Funderburk photo) Knoxville NationalsKnoxville RacewayPhoto GalleryWorld of Outlaws