The 2020 Drydene 311 was a NASCAR Cup Series race held on August 23, 2020, at Dover International Speedway in Dover, Delaware. Scheduled to be contested over 400 laps but shortened to 311 laps because of the doubleheader format on the 1-mile (1.6 km) concrete speedway, it was the 25th race of the 2020 NASCAR Cup Series season.