NASCAR started using electronic transponders to determine scoring (along with the Aaron's 499 at Talladega in Spring 2011). 2020: The two races, held May 17 and 20, were the first Cup Series events since March 8 (at Phoenix) because of the COVID-19 pandemic that led to a 72-day suspension of motorsport. The race operated under heavy restrictions to follow social distancing guidelines, including being behind closed doors, a team limit of 16, and without practice or qualifying. Kevin Harvick won the race, his second Darlington win and 50th career Cup Series win. Past winners Notes 1957: Race postponed due to rain. 1957–62: Race was for convertibles. 1963: Two 150-mile race format similar to motocross, best average score wins. Weatherly won the first race, Richard Petty won the second race. Weatherly (1/2) won the Rebel 300 with best overall finish. 2020: Two races held on same week due to COVID-19 pandemic. The May 20 event was scheduled for a 500km race. 1980, 1999 & 2020 II: Race shortened due to rain. Track length notes 1952: 1.25 mile course 1957–1970: 1.375 mile course 1971–present: 1.366 mile course Multiple winners (drivers) Multiple winners (teams) Manufacturer wins Notes References External links 1957 establishments in South Carolina NASCAR Cup Series races Recurring sporting events established in 1957