Ross Chastain wins the final race of the NASCAR XFINITY Series regular season and the first of his career at Las Vegas Motor Speedway in the DC Solar 300.
In the last race of the NASCAR Xfinity Series regular season, Cole Custer sets the pace for the pole position at Las Vegas Motor Speedway for the inaugural DC Solar 300 with a speed of 179.295 mph at 30.118 seconds.
