#18-Kyle Busch was fastest during opening practice at New Hampshire Motor Speedway with a speed of 128.667mph.
The rest of the top 10: #19-Matt Tifft, #23-Spencer Gallagher, #21-Daniel Hemric, #22-Brad Keselowski, #7-Justin Allgaier, #42-Kyle Larson, #00-Cole Custer, #9-William Byron, and #48-Brennan Poole.
37 drivers practiced during the session.
See complete results on the New Hampshire practice 1 speeds page (pdf).
