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 is scheduled to be 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.^[1] 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.

Las Vegas Motor Speedway, located in Clark County, Nevada outside the Las Vegas city limits and about 15 miles northeast of the Las Vegas Strip, is a 1,200-acre (490 ha) complex of multiple tracks for motorsports racing. The complex is owned by Speedway Motorsports, Inc., which is headquartered in Charlotte, North Carolina.

The first and only practice session was held on Friday, March 3, at 3:30 PM PST, and last for 30 minutes.^[2] Daniel Hemric, driving for Kaulig Racing, would set the fastest time in the session, with a lap of 30.216, and an average speed of 178.713 mph (287.611 km/h).

Qualifying was held on Friday, March 3, at 4:00 PM PST.^[2] Since Las Vegas Motor Speedway is an intermediate racetrack, the qualifying system used is a single-car, single-lap system with only one round. In that round, whoever sets the fastest time will win the pole.^[3] Chandler Smith, driving for Kaulig Racing, would score the pole for the race, with a lap of 29.489, and an average speed of 183.119 mph (294.701 km/h).^[4]

Stage 1 Laps: 45

Stage 2 Laps: 45

Stage 3 Laps: 110