Key notes: Marshalltown Speedway hosts the third annual Dale DeFrance Memorial. … IMCA Sunoco Late Models run for $2,619 to win in the 500th and final Deery Brothers Summer Series event. … The race honors the father of series competitor Darrel DeFrance, the only driver with perfect attendance in the history of the 33-year-old tour. Darrel DeFrance will complete his perfect series attendance streak at his hometown track. … There hasn’t been a repeat winner at Marshalltown in the last six series events. … Andy Eckrich of Oxford, Iowa, has two series wins there (2011, ’18). … Jeff Aikey (2007, ’10, 14) is a three-time Marshalltown Deery Brothers winner. … Logan Duffy of Independence, Iowa, has two wins among his 12 top-five IMCA finishes this season. … Modifieds, stock cars, northern sportmods and hobby stocks are on the undercard. … Pit gates open at 5:15 p.m. Main gate opens at 5:30 p.m. Hot laps are at 6:50 p.m.

Who to watch: Darrel DeFrance, who has four top-fives at Marshalltown this season, including a win and a second.

Expected entrants: Matt Ryan, Jeff Aikey, Logan Duffy, Curtis Glover, Justin Kay, Dalton Simonsen, Mitch Manternach, Colton Leal, Andy Nezworski, Eric Pollard, Chuck Hanna, Joel Callahan, Nick Marolf, Dalton Simonsen, Jacob Waterman, Michael Leal, Dalton Simonsen, Jill George and others.

Current weather: Overcast Light Rain, NA