Career
He currently competes full-time in the Xfinity Series, driving the Number. 4 Chevrolet Camaro for Juris Doctor Motorsports. Chastain began his racing career at the age of twelve, competing on local Florida short tracks in both late model and Fastruck Series events, as well as figure eight boat racing.
His short track career saw Chastain scoring over fifty wins in feature events, including the 2011 World Series of Asphalt at New Smyrna Speedway, winning three of eight events in the series.