After starting from the pole position on Saturday, Custer won the first stage of the race, on his way to leading a race high 58 laps out of the 103-lap race.
As a late race caution caused the race to go into overtime, Custer showed patience and maturity. Although, the No. 00 was passed on the restart, Custer made a veteran move, going low as Tyler Reddick took the final turn wide. Custer was able to pass Reddick on the inside, taking the lead and the checkered flag, .226 seconds ahead of Reddick, and clinching his first victory at the 2.5-mile track.