Ross Chastain will drive the No. 42 Chip Ganassi Racing full-time in the 2021 NASCAR Cup Series season. He previously drove the No. 10 Kaulig Racing machine in the 2020 Xfinity Series. In 2019, he shifted gears midseason to run for the NASCAR Camping World Truck Series championship with Niece Motorsports in 2019. Chastain's first Trucks win came at Kansas in May, followed by wins at World Wide Technology Raceway at Gateway and Pocono Raceway. He earned his first Xfinity Series victory at Las Vegas in 2018, driving for Chip Ganassi Racing on a part-time basis. His second Xfinity win came at Daytona International Speedway with Kaulig Racing.