Denny Hamlin topped the leaderboard in Friday's opening NASCAR Sprint CupSeries practice at Bristol Motor Speedway at 128.666 mph in the No. 11Joe Gibbs Racing Toyota. Hamlin has one win in 20 career Cup starts at Bristol.
Right behind him was Martin Truex Jr. in the No. 78 Furniture Row Racing Toyota at 128.399 mph.
Rounding out the top five were Brad Keselowski (128.374 mph in the No. 2Team Penske Ford), Jimmie Johnson (128.176 mph in the No. 48Hendrick Motorsports Chevrolet) and Jamie McMurray (127.767 mph in the No. 1Chip Ganassi Racing with Felix Sabates Chevrolet).
Winner of the past two Sprint Cup races and series points leader Kyle Busch was eighth fastest with a speed of 127.478 mph in the No. 18 Joe Gibbs Racing Toyota.
The NASCAR Sprint Cup Series will be back on track at 4:15 p.m. ET (FS1) for Coors Light Pole Qualifying. The series will have two 55-minute practice sessions on Saturday morning, with FS1 providing the TV coverage for both.