LAS VEGAS, NEVADA - MARCH 14: Sam Mayer, driver of the #41 Audibel Chevrolet, leads the field to the green flag to start the NASCAR O'Reilly Auto Parts Series The LiUNA! at Las Vegas Motor Speedway on March 14, 2026 in Las Vegas, Nevada. (Photo by Chris Graythen/Getty Images) | Getty Images
LAS VEGAS, NEVADA - MARCH 14: Sam Mayer, driver of the #41 Audibel Chevrolet, leads the field to the green flag to start the NASCAR O'Reilly Auto Parts Series The LiUNA! at Las Vegas Motor Speedway on March 14, 2026 in Las Vegas, Nevada. (Photo by Chris Graythen/Getty Images) | Getty Images

O’Reilly Auto Parts Series TV Ratings for Las Vegas

The CW earned 1,188,000 total viewers for Saturday’s O’Reilly Auto Parts Series race at Las Vegas Motor Speedway, per Nielsen panel + big data. It is the most-watched Las Vegas race in five years.

Viewership increased by 10% from last year’s spring Las Vegas race, held on the same weekend. The total viewership peaked at 1,430,000 in the closing laps between 8:00-8:15 p.m. ET.