The 2023 Alsco Uniforms 300 was the 3rd stock car race of the 2023 NASCAR Xfinity Series, and the 27th iteration of the event. The race was held on Saturday, March 4, 2023, in North Las Vegas, Nevada at Las Vegas Motor Speedway, a 1.5 miles (2.4 km) permanent tri-oval shaped racetrack. The race took the scheduled 200 laps to complete. Austin Hill, driving for Richard Childress Racing, made a last lap pass on Chandler Smith for the lead, and earned his fourth career NASCAR Xfinity Series win, along with his second of the season. Smith dominated the race in general, leading 118 laps. To fill out the podium, Justin Allgaier, driving for JR Motorsports, and Smith, driving for Kaulig Racing, would finish second and third, respectively.