SPARTA, Ky. — Jamie McMurray topped the chart in first Monster Energy NASCAR Cup Series practice at Kentucky Speedway.
The driver of the No. 1 Chip Ganassi Racing Chevrolet was the fastest with a time of 28.911 and a speed of 186.780 mph. Martin Truex Jr. was second in his No. 78 Furniture Row Racing Toyota with a time of 28.963 and a speed of 186.445 mph. Kyle Larson was third in his No. 42 Ganassi Chevrolet with a time of 29.017 and a speed of 186.098 mph. Ryan Blaney was fourth in his No. 21 Wood Brothers Racing Ford with a time of 29.023 and a speed of 186.059 mph. Kyle Busch rounded out the top-five in his No. 18 Joe Gibbs Racing Toyota with a time of 29.042 and a speed of 185.938 mph.
Denny Hamlin, Danica Patrick, Clint Bowyer, Chase Elliott and Erik Jones rounded out the top-10.
Busch posted the fastest 10 consecutive lap average at a speed of 183.148 mph.