The Cook Out 400 at Richmond Raceway was completely sold out on Saturday, as fans flocked to witness the high-speed action that the three-quarter-mile oval delivers. The race turned out to be a huge hit as William Byron clinched the 2025 NASCAR Cup Series Regular Season Championship, while Austin Dillon secured his sixth career victory.

RICHMOND, Va. — Here’s a look at the winners and losers from Sunday’s Cup race at Richmond. Austin Dillon — He snapped a 37-race winless streak with his second consecutive victory at Richmond — and did it without the controversy of last year’s race.

In his playoff-clinching victory at Richmond Raceway, Austin Dillon shared some NASCAR history on the venerable short track with the most famous driver of the No. 3 Chevrolet.