Ty Dillon was fastest in the first of two practice sessions on Friday at Mid-Ohio Sports Car Course with a lap of 96.087 mph.
Dillon led the way for the Richard Childress Racing cars, which swept the first four spots.
Sam Hornish Jr., driving the No. 2, was second fastest with a lap of 94.865 mph with rookie Brandon Jones third fastest at 94.564 mph. Brendan Gaughan clocked in fourth at 94.553 mph and Ryan Blaney rounded out the top five at 94.206 mph.
Blaney is the only Sprint Cup regular in the field this weekend.
Two Joe Gibbs Racing drivers had setbacks during the session. Daniel Suarez suffered damage to his right-rear quarterpanel but the No. 19 team will fix the damage and avoid going to a backup car. Suarez was ninth fastest at 93.927 mph.
Owen Kelly, driving the No. 18, had a shift issue, resulting in the team making an engine change. Kelly was 11th fastest at 93.820 mph.
Here are the speeds from the first session: