The 24 Hours of Daytona — officially known today as the Rolex 24 At Daytona — is one of the world’s most prestigious endurance sports car races, held annually at Daytona International Speedway in Daytona Beach, Florida. First run as a 24‑hour event in 1966 (its precursor, the Daytona Continental, began in 1962), the race uses a 3.56‑mile (5.73km) combined road course that blends part of the high‑speed tri‑oval with an infield section. It’s traditionally held on the last weekend of January or fir