DARLINGTON, S.C. (AP) — Justin Allgaier used a dominating performance on Saturday to win his first Xfinity race of the season and the third of his career at Darlington Raceway.

Allgaier led 119 of 147 laps, sweeping both stages as he finished ahead of Austin Hill and defending series champion Cole Custer.

Allgaier moved past Hill early in the second stage and never gave up the lead, staying in front for the final 95 laps.

“I think having a little gray hair today really helped me out, though, with those long green-flag runs,” the 37-year-old Allgaier said. “Being able to know what’s worked in the past here.”

The run ended a frustrating season so far for Allgaier, who had been in contention many times this year only to come up short of the checkered flag. He had a flat tire while leading with five laps left at Phoenix in March. Last month at Dover, Allgaier’s fast car ended 17th as the team’s strategy in the rain backfired.