Parker Retzlaff
Videos
Parker Edward Retzlaff is an American professional stock car racing driver. He competes full-time in the NASCAR O'Reilly Auto Parts Series, driving the No. 99 Chevrolet Camaro SS for Viking Motorsport
Retzlaff at Sonoma Raceway in 2026
2018 Midwest Truck
Retzlaff at Auto Club Speedway in 2023
Retzlaff's No. 4 car at Las Vegas Motor Speedway in 2025
The 2026 NASCAR O'Reilly Auto Parts Series is the 45th season of the NASCAR O'Reilly Auto Parts Series, a stock car racing series sanctioned by NASCAR in the United States. The season started on Febru
Justin Allgaier, the current points leader.
