Aric Almirola posted the fastest lap in the first of three Xfinity Series practices Friday at Atlanta Motor Speedway.
The top four are Cup regulars: Almirola (181.372 mph), Kyle Busch (181.194), Kevin Harvick (180.775) and Brad Keselowski (180.757).
Other Cup drivers competing in Xfinity this weekend are Kyle Larson, Austin Dillon, Ty Dillon, Denny Hamlin, Corey LaJoie and JJ Yeley.
Xfinity teams also have practice sessions today from 1:30 - 2:25 p.m. ET and from 3:30 - 4:25 p.m. ET.
Click here for Xfinity practice results