Byron beat out Chase Briscoe, Brad Keselowski, Ryan Blaney and Ryan Preece to take his second checkered flag of 2025. Byron's win made him the fourth driver to win multiple races this season. All four of those drivers reside in the top five of the NASCAR Cup Series standings. Full NASCAR standings can be found here.

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.

The answer: Yes. On Aug. 3, Byron led 141 laps, including the ones that counted most. He scored his second victory of the season and first since the Daytona 500. Briscoe, Keselowski, Ryan Blaney and Ryan Preece rounded out the top five. Here is the full finishing order: