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.

Who won the NASCAR Iowa race? William Byron is the winner, plus full NASCAR Cup results, running order and leaderboard for ...

William Byron nursed his car to the finish line at Iowa Speedway as the whole team held its breath there was enough fuel to ...

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

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

William Byron claimed victory at Iowa Speedway on Sunday following a caution-strewn final stage during the Iowa Corn 350 ...

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

It’s the 15th career victory across 11 Cup tracks for Byron, who opened the season with his second consecutive Daytona 500 ...

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 ...

NEWTON, Iowa– The checkered flag flies for William Byron at the Iowa Speedway, as the driver of 24 secures the win for the ...

Byron made his final pit stop on Lap 206 of 350 on the 0.875-mile oval, where the pit window is estimated at about 110 ...