AJ Allmendinger won the Alsco Uniforms 300 at Las Vegas Motor Speedway for his first win of the 2021 Xfinity Series season and his second career win on an oval. The race marked the first time an Xfinity Series race ended without overtime this season.
Austin Cindric and Daniel Hemric would split the first two stages.
Alsco Uniforms 300 Results
- AJ Allmendinger
- Daniel Hemric
- Brandon Jones
- Austin Cindric
- Noah Gragson
- Michael Annett
- Josh Berry
- Justin Haley
- Harrison Burton
- Jeb Burton
- Brandon Brown
- Tyler Reddick
- Santino Ferrucci
- Justin Allgaier
- Tommy Joe Martins
- Josh Williams
- Jeremy Clements
- Joe Graf Jr.
- Jeffrey Earnhardt
- Colby Howard
- Landon Cassill
- Bayley Currey
- Ryan Vargas
- Garrett Smithley
- Dexter Bean
- Jesse Little
- Gray Gaulding
- Chad Finchum
- David Starr
- Jade Buford
- Ty Dillon
- Myatt Snider
- Kyle Weatherman
- Brett Moffitt
- Alex Labbe
- Stefan Parsons
- Timmy Hill
- Ryan Sieg
- Matt Mills
- Riley Herbst