- Riley Herbst will make his first of four starts for Kyle Busch Motorsports (KBM) this season, piloting the No. 46 Monster Energy/Advance Auto Parts Tundra at Kansas Speedway in Kansas City. Herbst will make starts in both the No. 46 and the No. 51 Tundras in 2019. The other three races on the 20-year-old’s NASCAR Gander Outdoors Truck Series schedule this year are Iowa Speedway in Newton, Canadian Tire Motorsport Park in Bowmanville, Ont., and Talladega (Ala.) Superspeedway.
- Herbst finished eighth in his Gander Trucks debut last season driving the No. 51 Tundra at Gateway Motorsports Park in Madison, Ill. He also drove the No. 46 Tundra at Las Vegas (Nev.) Motor Speedway, where he was fastest in final practice and qualified fifth in his first Gander Trucks start on a mile-and-a-half track, but was relegated to a 29th-place finish after a mid-race accident. In addition, he made two starts for DGR-Crosley last season, finishing 15th in starts at Bristol (Tenn.) Motor Speedway and ISM Raceway in Avondale, Ariz.
- The Las Vegas native is also competing in a part-time NASCAR Xfinity Series schedule with Joe Gibbs Racing (JGR) in 2019. He has posted one top-10 finish across his two starts this year. Herbst made his NASCAR Xfinity Series debut last season for JGR, posting an impressive sixth-place finish at Iowa Speedway in his lone start of 2018.
- Herbst was a full-time competitor in the ARCA Racing Series in 2018, where he finished third in the championship standings after posting eight top-five and 15 top-10 finishes, resulting in an average finish of 8.3 across 20 starts. He is competing in a limited ARCA Racing Series schedule this season and most recently earned a runner-up finish at Talladega on April 26. He has made two starts at Kansas Speedway across his ARCA Racing Series career. He finished ninth in the 2017 event and fourth in last year’s race at the 1.5-mile track.
- Michael Shelton will call the shots for the No. 46 team at Martinsville. Shelton was James Buescher’s crew chief when he won the Gander Truck Series championship in 2012. Shelton has seven career Truck Series victories, including four with Buescher during their championship season. Shelton’s drivers have combined for one win (Buescher, 2012), two poles, two top-five and three top-10 finishes across eight starts at Kansas.