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 ...

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

William Byron fought off fuel worries in the closing laps to win the NASCAR Cup Series race Sunday at Iowa Speedway.

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.

William Byron utilized fuel strategy to claim his second NASCAR Cup Series win of the season at Iowa Speedway Sunday evening.

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

William Byron took his second win of the 2025 NASCAR Cup Series season in dramatic fashion as he was running on fumes in the closing laps of Sunday's Iowa Corn ...

Ryan Preece leaves Iowa Speedway as the biggest beneficiary of points, now just 23 back of the final transfer into the ...