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.

Third-place finisher Brad Keselowski recaps his race at Iowa Speedway, explaining that the way cautions played out hurt his RFK Racing team's strategy.

After a tight battle, Brad Keselowski overtakes William Byron for the top spot with two laps to go in Stage 1.

Green flag is out as Chase Briscoe and William Byron lead a pack of 37 cars to start the 23rd race of the 2025 season.