NEWTON, IOWA - AUGUST 03: Chase Briscoe, driver of the #19 Bass Pro Shops Toyota, and William Byron, driver of the #24 Raptor Chevrolet, lead the field to start the NASCAR Cup Series Iowa Corn 350 Powered by Ethanol at Iowa Speedway on August 03, 2025 in Newton, Iowa. (Photo by Meg Oliphant/Getty Images) | Getty Images
NEWTON, IOWA - AUGUST 03: Chase Briscoe, driver of the #19 Bass Pro Shops Toyota, and William Byron, driver of the #24 Raptor Chevrolet, lead the field to start the NASCAR Cup Series Iowa Corn 350 Powered by Ethanol at Iowa Speedway on August 03, 2025 in Newton, Iowa. (Photo by Meg Oliphant/Getty Images) | Getty Images

Iowa TV Ratings

USA Network’s coverage of the NASCAR Iowa Corn 350 was TV’s most-watched sporting event of the weekend.

Sunday’s race on USA averaged 2.2 million viewers, 2nd highest for last 10 Cup Series races.