With Kyle Busch’s help, Ryan Blaney took the lead on the final restart, then bobbed and weaved his way around Michigan International Speedway to beat William Byron by 0.077 seconds. It was the narrowest victory margin in a Cup race at this track since electronic scoring began.

Blaney won for the second time this season and sixth overall, capping a big weekend for Team Penske, which won Saturday’s IndyCar race in suburban St. Louis and then this victory, not far from Roger Penske’s Detroit roots. Ford also has won seven straight at Michigan.

Chase Elliott lost track position after stalling in the pits and two late yellows bunched the field together, suddenly putting Blaney in the top five.

When the top three cars took the outside lane on the final restart, Blaney chose the inside lane next to Byron and in front of Busch.

Kyle Larson and Byron took turns over the final seven laps trying to give one another a shot to pass Blaney. Nothing worked.

Austin Dillon heads into the regular-season finale in 17th place after finishing third in the first stage but his day ended with a nasty crash as the second stage ended.

Dillon was trying to move up from below the white line when the No. 3 Chevrolet appeared to make contact with Brad Kesewlowski, sending Dillon hard into the outside wall and briefly airborne in the front straightaway.

Keselowski apologized immediately on the radio.

Denny Hamlin hasn’t won yet this season but has clinched a playoff spot.

The regular-season ends Saturday night at Daytona.