William Byron ended up second (162.132 mph) and Jimmie Johnson was third (161.834 mph). Ryan Blaney and Alex Bowman rounded out the top-five.
In 21 career starts, Logano has never won at Dover. His best finish at the track is third (2010, 2013 2018).
Rounding out the top-10 were Paul Menard, denny hamlin, Kurt Busch, Aric Almirola and Kyle Larson.
In all, six of the top-10 speeds came from drivers will competing in the Cup series playoffs.
Kevin Harvick ended up with the fastest average speed (158.066 mph) among those drivers who ran at least 10 consecutive laps. Johnson and Blaney were second and third, respectively, in that category.