#42-Kyle Larson was fastest during opening practice at Texas Motor Speedway with a speed of 185.599mph. The rest of the top 10: #19-Daniel Suarez, #18-Matt Tifft, #20-Erik Jones, #88-Kevin Harvick, #48-Brennan Poole, #39-Ryan Sieg, #2-Austin Dillon, #3-Ty Dillon, and #6-Darrell Wallace, Jr. 37 drivers practiced during the session.
See complete results on the Texas practice 1 speeds page (pdf).
