Martin Truex Jr. topped the chart in first Monster Energy NASCAR Cup Series practice at Sonoma Raceway.
The driver of the No. 78 Furniture Row Racing was the fastest with a time of 1:15.740 and a speed of 94.587 mph. Denny Hamlin was second in his No. 11 Joe Gibbs Racing Toyota with a time of 1:16.158 and a speed of 94.068 mph. Ricky Stenhouse Jr. was third in his No. 17 Roush Fenway Racing Ford with a time of 1:16.470 and a speed of 93.684 mph. Clint Bowyer was fourth in his No. 14 Stewart-Haas Racing Ford with a time of 1:16.534 mph. Dale Earnhardt Jr. rounded out the top-five in his No. 88 Hendrick Motorsports Chevrolet with a time of 1:16.609 and a speed of 93.154 mph.
Chris Buescher, AJ Allmendinger, Chase Elliott, Kyle Busch and Joey Logano rounded out the top-10.
Busch posted the fastest 10 consecutive lap average at a speed of 91.852 mph.