Reigning champion Justin Allgaier withstood a challenge from Aric Almirola to win Saturday's NASCAR Xfinity race at Las Vegas Motor Speedway. It is the first win of the season for Allgaier and his first in the Xfinity Series at the track.

Who won the NASCAR Xfinity Series race at Las Vegas? Justin Allgaier is the winner, plus full NASCAR Xfinity Series results at Las Vegas.

In the closing laps, Justin Allgaier held off Aric Almirola to win the NASCAR Xfinity Series spring race at Las Vegas Motor Speedway.