Samuel Adam Mayer is an American professional stock car racing driver. He competes full-time in the NASCAR O'Reilly Auto Parts Series, driving the No. 41 Chevrolet Camaro SS for Haas Factory Team. His
Mayer at Sonoma Raceway in 2026
Mayer in victory lane at his first Midwest Truck Series start
Mayer's Xfinity Series car at Atlanta Motor Speedway in 2021
Mayer's Xfinity Series car at Sonoma Raceway in 2023
JR Motorsports is an American professional stock car racing team based in Mooresville, North Carolina, co-owned by Dale Earnhardt Jr., Kelley Earnhardt Miller, L. W. Miller, and Rick Hendrick. It curr
The JR Motorsports race shop in Mooresville, North Carolina
The JR Motorsports race shop floor
Elliott Sadler at Watkins Glen International in 2017
Michael Annett at Pocono Raceway in 2020