For the second consecutive week, the rookie prevailed.
Elliott overcame a slow pit stop following the final caution flag of the night with three laps remaining, passing Elliott Sadler on the final lap to take the checkered flag Friday night at Darlington Raceway in the VFW Sport Clips Help a Hero 200.
It's the second straight win for the 18-year-old, who won his first career series race last week at Texas.
Elliott was attempting to chase down Busch, the leader, when a late caution was thrown. Elliott went into the pits second, took four tires and came out sixth before making up ground on the restart.
Sadler, looking for his first series win since 2012, took two tires to put himself in position to win. He finished second.
Darlington, as it often does, claimed its share of wreck victims as well. Ryan Sieg, Dylan Kwasniewski, Chris Buescher and James Buescher were among the drivers suffering damage.
The series returns to the track in two weeks at Richmond International Raceway for the ToyotaCare 250 on Friday, April 25.
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