Key notes: The 44th annual Speedway Motors IMCA Super Nationals presented by Casey’s kicks off with Monday’s 50-lap, $3,000-to-win Late Model feature to go along with Race of Champions and qualifiers for sport mods and hobby stocks. … IMCA Late Models continue to be a staple on the first night of Boone’s Super Nationals, a tradition that extends as far back as 1988. … Jesse Sobbing of Malvern, Iowa, led all but three laps to win last year’s $3,000 Late Model Super Nationals. Sobbing has two Boone feature wins, including a Deery Brothers Series stop in May 2017, worth $2,000. … Six-time IMCA champ Cory Dumpert of Newman Grove, Neb., topped 2022’s Super Nationals and enters having won three of the last five Tri-State Late Model Series starts, all of them coming since Aug. 9 at Mason City (Iowa) Motor Speedway. … Dylan Thornton of Orcutt, Calif., won 2024’s Super Nationals, but has since focused on Super Late Model competition, primarily on the MARS Late Model Series. … Ricky Thornton Jr. of Chandler, Ariz., is a two-time winner (2019-’20) before primarily focusing on Super Late Models; Thornton has been competing this week at Boone in a modified and stock car. … National Dirt Late Model Hall of Famer Jeff Aikey of Cedar Falls, Iowa, is a six-time event winner (2004, ’13-’16, ’23). … Sport mods and hobby stocks are on the undercard. … Pits open at 9 a.m. and grandstands open at 11 with racing at 1. … Watch live on IMCA TV.

Who to watch: Cory Dumpert of Newman Grove, Neb., eyes his second Super Nationals win and fourth victory in his last eight starts, overall.

Points chase: IMCA National as of Sept. 3: 1. Zach Zeitner (792); 2. Tommy Elston (788); 3. Drew Baker (771); 4. Beau Johnson (769); 5. Travis Denning (762).

Expected entrants: Cory Dumpert, Jesse Sobbing, Zach Zeitner, Jeff Aikey, Cody Thompson, C.J. Horn, Kale Kosiski, Travis Denning, Matt Ryan, Tommy Elston, Logan Veloz, Curtis Glover, Darrel DeFrance, Andy Networski, Drew Baker, Beau Johnson, Mike Petersilie, J.J. Rodeman, Clay Simpson, Alex Banks, Jake Griffin, Aidan Mohr, Jesse Bodin, Landen Rojewski and more.