Dillon took the green flag on the pole and led each lap on the bottom as Ryan Gustin kept taking shots at him on the top of the half - mile dirt oval .
Dillon 's brother Austin won the opener at the DIRTcar Nationals by UNOH last week .
Dillon , whose brother Austin won the opener at the DIRTcar Nationals by UNOH last week , took the green flag on the pole and led each lap on the bottom as Ryan Gustin kept taking shots at him on the top of the half - mile dirt oval .