Justin Haley was fastest in the Xfinity Series’ second and final practice session Friday at Atlanta Motor Speedway.
Haley posted a top speed of 177.783 mph around the track.
John Hunter Nemechek recorded the most laps with 55.
Gragson had the best 10-lap average at 172.715 mph.
Custer was fastest in the first Friday practice session with a top speed of 178.218 mph around the 1.54-mile track.
Michael Annett had the best 10-lap average at 171.719 mph.
There were no incidents in the session.
The final Xfinity practice session set for 3:05 – 3:55 p.m. ET on Fox Sports 1.