The last of two Sprint Cup practices for the night race at Bristol Motor Speedway ended with Kyle Busch the fastest at 131.146 mph.
Busch had been third fastest in the first practice session.
The top five was filled out by David Ragan (130.646 mph), Kyle Larson (130.018), Joey Logano (129.587) and Denny Hamlin (129.404).
Jamie McMurray (15th fastest) recorded the most laps in the session at 60.
Speed chart:
