The Cook Out 400 is an annual NASCAR Cup Series stock car race held at the 0.526-mile (0.847 km) Martinsville Speedway in Ridgeway, Virginia.It is the first of two Cup Series races at the track, the other one being the Xfinity 500 in the NASCAR playoffs.From 2008 to 2012, the fall Cup Series race at Martinsville was sponsored Tums, which was owned by the same parent company (British pharmaceutical conglomerate GSK plc) as Goody's.In 2020, Blue-Emu took over naming rights for the race as part of a multi-year deal with NASCAR.In 2023, The NOCO Company, which makes car parts such as batteries, battery chargers and jumper cables, replaced Blue-Emu as the title sponsor of the race.
The race logo in 2022. Blue-Emu was also the title sponsor of the race in 2020 and 2021 when it was 500 laps in length.