#3-Ty Dillon was fastest during opening practice at Texas Motor Speedway with a speed of 186.793mph.
The rest of the top 10: #20-Erik Jones, #2-Austin Dillon, #22-Ryan Blaney, #18-Daniel Suarez, #00-Cole Custer, #42-Tyler Reddick, #12-Joey Logano, #19-Matt Tifft, and #41-Kevin Harvick.
All 42 drivers practiced during the session.
See complete results on the Texas practice 1 speeds page (pdf).
