The ValleyStar Credit Union 300 is a late model race held at Martinsville Speedway in the early fall each year since 1985.

In 1970, Martinsville Speedway added 250-lap twin features for the Late Model Sportsman and Modified classes annually.

As the touring formats were adopted fully for the 1985 season, Martinsville Speedway cut the two races from 250 laps to 200 laps in 1985, and returned the local Late Models to the schedule in 1985, adding a 100-lap Late Model feature to the race weekend.

The finishes to the 2013 and 2014 editions were marred by officiating decisions regarding the leader's ability to choose when to restart the field.

[3] After numerous incidents in recent years with darkness, the track added lights for the 2017 race, being held in late September, which prior to 2000 was the NASCAR Cup date, which now is on the traditional final weekend of October that the Late Model race was held for many years.

With restrictions eased in 2021, the race returned, with 16-year old Landon Pembelton surprising the field to claim the checkered flag.

Late Model Stock Cars (LMSC) are distinctly different from Super Late Models (SLM), where the passenger side is considerably higher than the driver side (also called an Offset Chassis) using what is called an "Approved Body Configuration" body, such as the Snowball Derby, Winchester 400, and other similar races.