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.

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

The third time was the charm on Sunday for William Byron. After running out of fuel at both Michigan (while leading) and ...

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

Fuel mileage has been an issue for William Byron in three races this season, costing him a victory at Michigan and a ...

William Byron snagged his second win of the 2025 NASCAR Cup Series season at Iowa Speedway on Sunday. Behind him, however, ...

This article was originally published on fansided.com as NASCAR Cup Series Iowa results: Iowa Corn 350 winner and order.

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

William Byron and crew chief Rudy Fugle played their fuel mileage strategy to perfection at Iowa Speedway, earning their ...