#6- Darrell Wallace, Jr. was fastest during opening practice at Charlotte Motor Speedway with a speed of 180.536Xmph. #33-Austin Dillon was second, followed by: #2-Brian Scott, #60-Chris Buescher, #20-Erik Jones, #22-Ryan Blaney, #9-Chase Elliott, #42-Kyle Larson, #20-Denny Hamlins, and #3-Ty Dillon. 40 drivers practiced during the session. See complete results on the Charlotte practice 1 speeds page (pdf).(5-21-2015)
