The 2020 NASCAR Cup Series was the 72nd season for NASCAR professional stock car racing in the United States and the 49th season for the modern era Cup Series. The season began at Daytona International Speedway with the Busch Clash, the Bluegreen Vacations Duel qualifying races, and the 62nd running of the Daytona 500. The regular season ended with the Coke Zero Sugar 400 at Daytona on August 29. The NASCAR playoffs ended with the Season Finale 500, the first finale at Phoenix Raceway on November 8.

William McComas Byron Jr. is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 24 Chevrolet Camaro ZL1 for Hendrick Motorsports and part-time in the NASCAR Xfinity Series, driving the No. 17 Chevrolet Camaro for the same team. He won the 2015 NASCAR K&N Pro Series East Championship and the Sunoco Rookie of the Year award in the 2016 NASCAR Camping World Truck Series season. The following season he won both the 2017 NASCAR Xfinity Series Championship and 2017 Sunoco Rookie of the Year. Byron also won the 2018 MENCS Sunoco Rookie of the Year award. He is the 2024 Daytona 500 winner.