LONG POND, P.A. — Daniel Suarez led opening practice for Sunday’s Pocono 400 by running with a fastest speed of 171.217mph.
Ryan Blaney, Alex Bowman, Kyle Busch, and Brad Keselowski rounded out the top-five.
Kevin Harvick ran the most laps in the session (29) and ended up 15th on the speed charts (169.651mph).
Pocono 400 First Practice results: