William Byron admitted he was nervous as he headed into the final laps of the NASCAR Cup Series race Sunday at Iowa Speedway.

But the strategy paid off for William Byron, who drove his No. 24 Chevrolet to victory in the 2nd NASCAR Cup Series race at ...

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 ...

William Byron used a flurry of cautions to stretch his fuel over the final 140 laps to win Sunday's NASCAR Cup Series race at Iowa Speedway.

Chase Briscoe logged his third runner-up finish in four weeks, taking second at Iowa Speedway behind William Byron after similar near-misses at Dover and Sonoma.

William Byron overcame recent fuel strategy heartbreak to win Sunday's Iowa Corn 350, stretching his final tank an astounding ...