#2-Brad Keselowski was fastest during opening practice at Pocono Raceway with a speed of 169.141mph.
The rest of the top 10: #20-Kyle Benjamin, #42-Kyle Larson, #11-Blake Koch, #3-Ty Dillon, #2-Paul Menard, #21-Daniel Hemric, #7-Justin Allgaier, #48-Brennan Poole, and #18-Daniel Suarez.
39 drivers practiced during the session.
See complete results on the Pocono practice 1 speeds page (pdf).
