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

William Byron had just enough fuel to win the NASCAR Cup Series race Sunday. What does his victory at Iowa Speedway mean?

William Byron's 21-race winless drought snapped at Iowa and other key takeaways as the NASCAR regular season winds down.

William Byron stretched the fuel 145 laps to the finish of Sunday's NASCAR Cup Series Iowa Corn 350 at Iowa Speedway.

William Byron nursed his No. 24 Hendrick Motorsports Chevrolet home on fuel to win Sunday's Iowa Corn 350 Powered by Ethanol ...

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.

Byron has just enough gas to win Sunday's NASCAR Cup Series Iowa Corn 350 after racing "thousands of laps" at Iowa on a video ...

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 was the class of the field when it mattered on Sunday (Aug. 3) at Iowa Speedway, winning the Iowa Corn 350 by 1 ...