Key notes: Dennis Erb Jr. duplicated the track record in time trials, matching Garrett Alberson's 14.443-second lap from 2024's Show-Me 100 weekend. ... After a hard hit into the turn-two wall in Friday's prelim, Dylan Thornton is aboard Chris Bragg's backup Longhorn Chassis. ... The MARS Late Model Championship Series-sanctioned Fall Nationals wraps up with Saturday’s 50-lap, $10,000-to-win finale at Lucas Oil Speedway in Wheatland, Mo. … The two-day program began when Chase Junghans fended off a late surge by Dallon Murty in leading all 30 laps of Friday’s $5,000 prelim. … Junghans, of Manhattan, Kan., captured his first career MARS victory and second win in consecutive starts at Wheatland after topping last month’s Midwest LateModel Racing Association-sanctioned Ron Jenkins Memorial finale, worth $10,000. … Ryan Unzicker of El Paso, Ill., the 2022 MARS titlist, enters Saturday’s season finale with a 24-point advantage over Jason Feger of Bloomington, Ill., the three-time and reigning series champ. … Tony Jackson Jr. of Lebanon, Mo., has three major Lucas Oil Speedway wins since 2022, including last year’s $10,000 Fall Nationals finale. … Chris Simpson of Oxford, Iowa, has three Wheatland specials in the last three years, including 2024’s Fall Nationals finale, combining to collect more than $37,000 over that span. … Watch live on FloRacing.

Who to watch: Chase Junghans of Manhattan, Kan., chases his third straight Wheatland victory and a Fall Nationals weekend sweep.

Points chase: Before Wheatland Saturday: 1. Ryan Unzicker (1,284); 2. Jason Feger (1,260); 3. Dylan Thornton (1,176); 4. Daniel Adam (935); 5. Bob Gardner (926).

Current weather: Clear, 72°F

Car count: 42

Fast qualifier: Dennis Erb Jr.

Time: 14.443 seconds

Polesitter: Dennis Erb Jr.

Heat race winners: Dennis Erb Jr., Tony Jackson Jr., Dylan Thornton, Dallon Murty

Consolation race winners: Mark Voigt, Gordy Gundaker

Provisional starters: Ryan Unzicker, Bob Gardner