Kyle Larson posted the fastest lap in Friday’s lone NASCAR Cup practice session at Pocono Raceway. Larson posted a lap of 177.312 mph.
Darrell Wallace Jr., making his Cup debut, ranked 19th on the speed chart with a top lap of 174.135 mph. He ran 21 laps in the session in the No. 43 Richard Petty Motorsports Ford.
Dale Earnhardt Jr.‘s team was forced to change engines after an issue early in the session.
There were no other incidents in the session.
Qualifying begins at 4:15 p.m. ET today.