Key notes: The Ultimate Southeast Series makes its Thunderhill Raceway debut in Saturday’s $7,500-to-win Mayhem Classic 40. … Garrett Smith of Madison, Ga., won March 28’s Grand Reopening event, worth $15,053 in Schaeffer’s Spring Nationals action. … It was the first race at Thunderhill since Zack Mitchell of Enoree, S.C., captured the $15,000 Mark Fields Memorial in the fall of 2024, in Hunt the Front Series competition. … Payton Freeman of Commerce, Ga., won 2024’s $5,000 HTF weekend opener. … Josh Putnam of Florence, Ala., has five Thunderhill specials going back to the fall of 2011, earning more than $19,000 over that span. … Christian Hanger of Winchester, Tenn., earned a $3,026 Limited Late Model victory there in the fall of 2023. … Points leader Jason Riggs of College Grove, Tenn., chases his first win in more than a year after collecting a $1,500 DIRTcar Super Late Model triumph last May 17 at the now-closed Clarksville (Tenn.) Speedway. … 602 Crate Late Models headline a seven-division undercard. … Gates open at 4 p.m. with hot laps at 6:30 and racing at 7. … Friday’s practice was cancelled to allow for additional track preparation.

Who to watch: Josh Putnam of Florence, Ala., eyes his sixth career Thunderhill special since 2011.

Points chase: Before Thunderhill: 1. Jason Riggs (145); 2. David Yandle (111); 3. Jadon Frame (97); 4. Dillon Tidmore (71); 5. Rusty Schlenk (69).

Expected entrants: Josh Putnam, Sam Seawright, Zack Mitchell, Garrett Smith, Jadon Frame, Christian Hanger, Oakley Johns, Brenden Smith, Luke Morey, Jason Riggs, Payton Freeman, Dillon Tidmore, Dillard Hatchett, Cruz Skinner, Matthew Brocato, Brody Smith, Brayden Skinner, Tyler Thomason, Jack Franklin and others.

Next series race: June 6, Screven Motor Speedway (Sylvania, GA) $10,098