Key notes: The Mississippi State Championship Challenge Series opens a Labor Day doubleheader with Saturday’s $5,000-to-win All American at Jackson Motor Speedway. … Mike Palasini Jr. of Leland, Miss., seeks his third straight MSCCS victory at Jackson after earning $3,000 wins there in March and June. … Six-time and reigning series champ Chad Thrash of Meridian, Miss., eyes his fifth straight series victory dating back to July 5 at Super Bee Speedway in Chatham, La. … Points leader Brandon Carpenter of Clearwater, Miss., chases his first career MSCCS feature victory. … Jackson’s All American Friday opener (local divisions) rained out. … 604 Crate Late Models and hot shots contest full shows on the undercard, while 602 Crates, factory stocks and street stocks qualify for Sunday’s racing action. … Pits open at 4 p.m. and grandstands open at 5, with racing at 7.

Who to watch: Mike Palasini Jr. of Leland, Miss., eyes his third straight MSSCS feature victory at Jackson.

Points chase: Before Jackson: 1. Brandon Carpenter (1,435); 2. Chad Thrash (1,360); 3. Jeremy Broadus (1,125); 4. Dean Carpenter (1,030); 5. Chase Williams (915).

Expected entrants: Mike Palasini Jr., Chad Thrash, Brandon Carpenter, Neil Baggett, Tanner Kellick, Ross Camponovo, Jade Luzenberg, Dean Carpenter, Ryan Wilson, Jeremy Shaw, Jamie Milam, Matthew Brocato, Evan Ellis, Shane Hebert, Jeremy Broadus, Talan Willis, Chase Williams, Jake Milam and others.

Current weather: Scattered Clouds, 77°F

Next series race: August 31, Magnolia Motor Speedway (Columbus, MS) $3,000