Stock car racing events in the NASCAR O'Reilly Auto Parts Series have been held annually at Charlotte Motor Speedway in Concord, North Carolina since 1982.
The Charbroil 300 is an annual NASCAR O'Reilly Auto Parts Series race held at the Charlotte Motor Speedway in Concord, North Carolina during Memorial Day weekend as a support race for the Coca-Cola 600. William Byron is the defending race winner.
The race's origins trace back to 1978, when a NASCAR Late Model Sportsman Series race was held the day before the World 600. In 1982, it became a Busch Series race.
From its inception through 2004, the race was scheduled for Saturday afternoon. In 1985 only, it was held the same day as The Winston. Lights were installed at Charlotte in 1993, and from 2005 to 2009, the race was a Saturday night race. In 2010, the race was moved back to 2:30 p.m. Eastern in response to fans wanting an afternoon race and allowing for ABC coverage. In 2015, the race's broadcast was transferred to NASCAR on Fox after the departure of the NASCAR on ESPN content, allowing both of the races in Charlotte (the 300 on Saturday and the 600 on Sunday) to air on Fox.
In 2018, Alsco, a linen and uniform rental services company, became the entitlement sponsor for the race, dubbing it the Alsco 300. The name was tweaked in 2021 to become the Alsco Uniforms 300.
In 2024, BetMGM, a sports betting and online gaming platform jointly owned by MGM Resorts International and Entain, became the new title sponsor of the race.
The Blue Cross NC 250 is a NASCAR O'Reilly Auto Parts Series stock car race that took place at Charlotte Motor Speedway in Concord, North Carolina. The 1985 race was extended to , which stands as the longest race distance run in O'Reilly Auto Parts Series history.
The Blue Cross NC 250 was a NASCAR Xfinity Series stock car race that takes place at Charlotte Motor Speedway in Concord, North Carolina. It is held before the NASCAR Cup Series' Bank of America Roval 400 in the playoffs. Connor Zilisch is the last race winner.
In 2018, the race was shifted to run the "Roval" infield road course configuration of Charlotte. With this, the race length was shortened from 300 miles to 200 kilometers (125 miles). It would also move up a week on the Xfinity Series schedule, the middle race of the first round of the playoffs. Chase Briscoe became the first Xfinity Series driver to win the race in its Roval configuration. The next year, the race was increased to 67 laps and 250 km (155.34 mi), with a name change, the Drive for the Cure 250.
In 2025, the race encountered another name change, the Blue Cross NC 250.
The 2026 race was to be planned to be 70 laps. On February 3, 2026, the Roval races for all three series would return to the oval.