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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.
The 23rd regular-season race for the Cup Series on the NASCAR schedule took place on Sunday afternoon at Iowa Speedway.
William Byron utilized fuel strategy to claim his second NASCAR Cup Series win of the season at Iowa Speedway Sunday evening.
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