Austin Dillon led the first practice session for the Nationwide Series Dollar General 200 at Phoenix International Raceway.
His lap of 133.097 mph in the No. 3 Chevrolet was quickest of the 38 cars out on the track for this session. No. 54 Kyle Busch, No. 2 Brian Scott, No. 32 Kyle Larson and No. 7 Regan Smith were the rest of the top 5 on the speed chart. Harrison Rhodes in the No. 23 was the slowest.