Everything you need to know to watch every race during the NASCAR Sonoma race weekend.

Welcome to the Racing America On SI Live Race Updates page for the 2025 NASCAR Cup Series Iowa Corn 350 Powered by Ethanol at Iowa Speedway. Be sure to refresh this post throughout Sunday's event as ...

NASCAR Cup Series Cook Out 400 in Richmond, Va., this Saturday at 7:30 p.m. ET on USA Network; Countdown to Green Gets Underway at 7 p.m. ET ...