Fends off the field on a pair of overtime restarts despite being on older tires to win his fourth race of the season. No driver has won more Cup races this season. Chase Briscoe — His runner-up result gave Joe Gibbs Racing a 1-2 finish.

With a 20th-place finish, Dillon -- the No. 32 and final seed in the In-Season Challenge -- advanced to the final round of the tournament, where he will race Gibbs (who won his matchup against Tyler Reddick) for a $1 million prize in next weekend's Brickyard 400 at Indianapolis.

Denny Hamlin held off his Joe Gibbs Racing teammate Chase Briscoe in overtime to win his third NASCAR Cup race at Dover. See race highlights, recap.