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William Byron has enough fuel to win NASCAR Cup race at Iowa Speedway

NEWTON, Iowa (AP) — William Byron fought off fuel worries in the closing laps to win the NASCAR Cup Series race Sunday at Iowa Speedway.

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William Byron has enough fuel to win NASCAR Cup race at Iowa Speedway

William Byron celebrates after winning a NASCAR Cup Series auto race, Sunday, Aug. 3, 2025, at Iowa Speedway in Newton, Iowa. (AP Photo/Bryon Houlgrave)


NEWTON, Iowa (AP) — William Byron fought off fuel worries in the closing laps to win the NASCAR Cup Series race Sunday at Iowa Speedway.

Byron went the last 144 laps of the 350-lap race without a stop en route to his second victory of the season — he won the Daytona 500 in February — and 15th overall. He also took the season points lead from Hendrick Motorsports teammate Chase Elliott.

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