The 2020 Drydene 311 was a NASCAR Cup Series race that was originally scheduled to be held on May 3, 2020, but postponed to August 22, 2020, at Dover International Speedway in Dover, Delaware. Scheduled to be contested over 400 laps but shortened to 311 laps because of the 500-kilometer doubleheader format used on the 1-mile (1.6 km) concrete speedway, it was the 24th race of the 2020 NASCAR Cup Series season. It was the first 300-mile Cup Series race since 1970 at Dover. There were three stages, each ending at 70, 115 & 126.