Denny Hamlin went back-to-back at Dover Motor Speedway, holding a late lead through a rain delay and an overtime finish Sunday for the Joe Gibbs Racing driver's series-best fourth victory of the season. Hamlin won in the No. 11 Toyota for the second straight time at Dover to add to wins this season at Martinsville, Darlington and Michigan. Hamlin has 58 NASCAR Cup Series victories, leaving him, two short of Kevin Harvick for 10th on the career list. The 44-year-old Virginia driver might hit that mark this season as he chases his first career Cup championship. Hamlin held off JGR teammate Chase Briscoe for the victory. Hendrick Motorsports drivers took the next two spots, with Alex Bowman third and Kyle Larson fourth.