Kyle Busch led all but one of the 200 laps Saturday to earn his first career Xfinity Series at his home track.
Busch scored a Cup victory at Las Vegas Motor Speedway in 2009, but was 0-for-11 in his previous starts in NASCAR's second tier series.
The victory for Busch was his 78th in the Xfinity Series, and second consecutive this season. He also won last weekend at Atlanta.
He put a Joe Gibbs Racing Toyota in the Vegas victory lane for the first time in team history in the Xfinity Series. The JGR drivers went 1-2-3 in a sweep of the podium as Daniel Suarez finished second and Erik Jones came from two laps down to finish third.
Darrell Wallace Jr. was the only driver to lead one lap.