NASCAR Cup Series drivers and officials are optimistic the series will return to Iowa Speedway for years to come.

NEWTON, Iowa — A look at the winners and losers from Sunday’s Cup race at Iowa Speedway.

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

William Byron gambled on fuel mileage and won the Iowa Corn 350 NASCAR Cup Series race on Aug. 3 at Iowa Speedway. ...

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 saved enough gas to score his second win of the 2025 NASCAR Cup Series season at Iowa Speedway on Sunday.

William Byron was already locked into the NASCAR Cup Series playoffs and was second in the regular-season point standings ...

The NASCAR Cup Series has raced only twice at Iowa Speedway: last year was its debut and then Sunday, when William Byron ...

NASCAR returns to Iowa Speedway for the Iowa Corn 350 on Sunday, marking just the second-ever Cup Series race at the 0.875-mile track in Newton.

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

Let’s dive into Sunday’s winners and losers from the NASACR Cup Series race at Iowa Speedway, starting with race winner William Byron.

Brad Keselowski and Ryan Preece continued a hot stretch as they scored a pair of top fives in back-to-back weeks at Iowa.