Richard Lloyd Ruby was an American racecar driver who raced in the USAC Championship Car series for 20 years, achieving 7 victories and 88 top-ten finishes. He also had success in endurance racing, winning the 24 Hours of Daytona twice, the 1966 12 Hours of Sebring and the 1966 World Sportscar Championship.

The 24 Hours of Daytona, also known as the Rolex 24 At Daytona for sponsorship reasons, is a 24-hour sports car endurance race held annually at Daytona International Speedway in Daytona Beach, Florida. It is run on the Sports Car Course layout, a 3.56-mile (5.73 km) combined road course that uses most of the tri-oval plus an infield road course. Held on the last weekend of January or first weekend of February as part of Speedweeks, it is the first major automobile race of the year in North America. The race is sanctioned by IMSA and is the first race of the season for the IMSA SportsCar Championship.