#3-Ty Dillon was quickest during happy hour for the Boyd Gaming 300 with a speed of 179.485 mph. He was followed by: #9-Chase Elliott, #60-Chris Buescher, #88-Dale Earnhardt, Jr., #42-Kyle Larson, #2-Brian Scott, #33-Matt Crafton, #54-Kyle Busch, #62-Brendan Gaughan, and #20-Matt Kenseth. 40 drivers participated in the session. See complete results on the Las Vegas practice 2 speeds page (pdf).
