DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Justin Allgaier, driver of the #7 Arby's Steak Nuggets Chevrolet, and Carson Kvapil, driver of the #1 Bass Pro Shops Chevrolet, leads the field during the NASCAR O'Reilly Auto Parts Series Fleetio 200 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images) | Getty Images
DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Justin Allgaier, driver of the #7 Arby's Steak Nuggets Chevrolet, and Carson Kvapil, driver of the #1 Bass Pro Shops Chevrolet, leads the field during the NASCAR O'Reilly Auto Parts Series Fleetio 200 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images) | Getty Images

O’Reilly Auto Parts Series TV Ratings: Darlington Raceway

The CW earned 965,000 total viewers for Saturday’s Fleetio 200 O’Reilly Auto Parts Series race at Darlington Raceway, per Nielsen panel-only data. It marked the most-watched Darlington race since the 2020 season.

The audience grew 32% compared to last year’s 25th race of the weekend, held one week earlier at Portland International Raceway. Viewership peaked in the closing laps at 1,139,000 total viewers between 9:30 and 9:45 p.m. ET.