In just the second-ever cup race at the Iowa Speedway, an intense cat-and-mouse fuel mileage battle ensued as four drivers ...

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

An unusual number of caution flags helped William Byron save enough fuel to win the Iowa Corn 350 Powered by Ethanol on ...

Byron Is Back! William Byron, who last won in the season-opening Daytona 500, put an end to his losing streak as well as his recent cold streak with a win in Sunday's Iowa Corn 350 at Iowa Speedway.