Hyperion (18 April 1930 – 9 December 1960) was a British-bred Thoroughbred, a dual classic winner and an outstanding sire. Owned by Edward Stanley, 17th Earl of Derby, Hyperion won GBP £29,509 during his racing career—a considerable sum at the time. His victories included the Epsom Derby and St Leger Stakes. He was the most successful British-bred sire of the 20th century and champion sire in Great Britain six times between 1940 and 1954. Hyperion was by the good sire Gainsborough, who was one of three wartime Triple Crown winners in Great Britain. His dam, Selene, was by Chaucer, a talented son of the undefeated St. Simon. Selene was also the dam of such good sires as Sickle (GB) (sireline ancestor of Native Dancer and Sea Bird), Pharamond (US), and Hunter's Moon (GB). Hyperion was inbred in the third and fourth generation to St. Simon, and was trained by George Lambton at Newmarket. Hyperion, who stood just 15.1 hands high, was one of the smallest horses to ever win a British Classic, but he had a good action and beautiful temperament. Racing career At two years Hyperion was a good two-year-old winning the New Stakes at Ascot and the Dewhurst Stakes plus a dead-heat in the Prince of Wales Stakes from five starts in 1932. At three years He was undefeated in four starts, winning the Chester Vase, the Epsom Derby, the Prince of Wales Stakes and the St Leger Stakes. At four years He raced four times also at four years, winning two races, the March Stakes (ten furlongs) and the Burwell Stakes (showcase handicap), both contested at Newmarket. In his main race, the Ascot Gold Cup, he was third to Felicitation and Thor. The two and a half miles indicated that he was not a true stayer. In the Dullingham Stakes at Newmarket, only two horses started where three-year-old, Caithness, carrying 8 st. 1 lb. defeated Hyperion carrying 10 st. 2 lb. by a short head. Stud record He was retired to stud when he was five years old and became a phenomenal success. An important stallion, he sired the winners of 752 races, including 53 stakes winners that had 84 stakes wins, and was the leading sire in Great Britain & Ireland six times, counting amongst his progeny: Aureole (GB) H, 1950 — Coronation Cup (1954), King George VI and Queen Elizabeth Stakes (1954) Godiva (GB) M,