Early in Happy Hour on Saturday afternoon, Austin Dillon put a speed up of 194.301 mph, a half-tenth of a second quicker than second place.
Michigan is Dillon's "favorite racetrack." The last time the Cup Series sped around the 2.0-mile oval, the No. 3 car was out front for 19 laps after starting in the back and picking up a fourth-place finish.
Brad Keselowski, hometown driver, was second on the leader board in the final session at 194.013 mph. He has never recorded a victory at his home track.
Jimmie Johnson was third on the board at 193.851 mph. Trevor Bayne led Roush Fenway Racing in fourth at 193.778 mph and Pocono winner, Kurt Busch completed the top five at 193.741 mph.
Dale Earnhardt, Jr. Martin Truex, Jr. Kyle Larson, pole-sitter Joey Logano and AJ Allmendinger rounded out the top 10.
Ryan Blaney was the fastest rookie on Saturday, while his nemesis, Chase Elliott was 21st on speed, running 47 laps, the most of all drivers. The 20-year-old got into the wall with about 10 minutes remaining, scuffing up the right rear of the car. The No. 24 car got back out on track to complete more laps.
After posting the fastest time in opening practice Saturday morning, Carl Edwards was mired down in 17th at 192.947 mph. 3All four of the Joe Gibbs Racing cars were outside the top 10 with Denny Hamlin leading the train of drivers in 11th.
38 cars took time in Happy Hour. Truex led the way on best 10 lap averages at 191.991 mph. He had a pair of third-place finishes last season at Michigan.
The 400-mile race is scheduled to begin shortly after 1:00 p.m. ET on Sunday. Last year, Busch was victorious in a rain-shortened event.