Byron's win is his first since the Daytona 500, and it also gives him the regular season points lead with three races to go

William Byron’s Iowa Corn 350 victory gave him the distinction of being the only driver to have won at Iowa Speedway in all three NASCAR national touring series and the 27-year-old driver points to iRacing as the key to his success at the short track.

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