Aric Almirola, who won last weekend at Talladega, was fastest in the first of two Cup practice sessions Saturday at Kansas Speedway.
Almirola posted a top speed of 186.683 mph around the 1.5-mile track.
The top five was completed by Erik Jones (186.599 mph), Martin Truex Jr. (186.355), Clint Bowyer (186.303) and Kyle Busch (186.252).
William Byron (11th fastest) and Kevin Harvick (20th) recorded the most laps with 39.
Kyle Busch had the best 10-lap average at 184.388 mph.
Chip Ganassi Racing’s rough weekend got worse when Jamie McMurray‘s engine expired with 31 minutes left in the session, causing a red flag. McMurray was 19th fastest.
Click here for the speed chart.