Over the years, Myrtle Beach Speedway has been the training grounds for some of NASCAR's biggest stars including Jeff Gordon (former Busch Series track record holder).

The NASCAR Advance Auto Parts Weekly Series raced on Saturday nights from late February through November.

The track also ran various other classes of racing including Late Model Charger, Super Trucks and Mini Stocks.

In May 2020, it was announced the track would close its doors for good in August, before the season could be finished as the result of a sale to a land developer.

Although it kept the track safe from demolition for the time being, photos taken on July 6, 2021 showed weeds and grass slowly taking over the racetrack.

In preparation for the last race, in July 2020, track promoter Steve Zacharias and business partners Brian Vause and Savannah Brotherton formed Speedway Plus Promotion LLC, becoming the promoters for Florence Motor Speedway, a 0.400 mi (0.644 km) oval located at 836 East Smith Street in Timmonsville, 75 mi (121 km) from the track but in the same metropolitan region owned by Charlie Powell, Jr., whose family has raced in the NASCAR Advance Auto Parts Weekly Series (son Robert was the 1988 national champion).

The Powell family and Zacharias' group signed a lease to own agreement that lasted from July 2020 to the end of the 2023 season.

In 2021, the Prelude to Darlington was added on Goodyear 400 weekend, and was specifically designed where spectators can attend both races on the same day.

On September 9, 2020, CARS then alleviated a situation where South Boston Speedway could not open because of Commonwealth restrictions in Virginia, and moved that round to Florence in October 2020.

[8] The Myrtle Beach 400 was renamed the South Carolina 400 Charlie Powell Memorial and continued in its traditional mid-November date in 2020, held the week before the Southern National Motorsports Park Thanksgiving Classic.

NASCAR and the Zacharias officially recognised the Myrtle Beach 400 as part of the Charlie Powell Memorial lineage.

Earnhardt continues to both drive and field cars for the major Florence races, with participation in the season-ending Powell and the season-opening IceBreaker since the 2022 season finale.

Brenden "Butterbean" Queen won the 2022 edition, leapfrogging him to stardom where he finished fourth in a 2024 North Wilkesboro Speedway Craftsman Truck Series race.

Carson Kvapil, who drives for JR Motorsports, won the 2024 IceBreaker in a season which led to him making starts in the NASCAR Xfinity Series that including a podium finish at Dover Motor Speedway and a win at the ValleyStar Credit Union 300 in Martinsville, earning a 2025 Xfinity ride.

As part of the "outlaw" status, the track will join forces with Southern National Motorsports Park in sharing rules and competitor licences.

Each track will feature one race each in the winter and again in the summer where the top four in points advance to the two-race championship round in November.