Natroun over 2400 metres at Longchamp Racecourse on 7 May. Two weeks later he contested the Prix de l'Avre over the same course and distance and won by five lengths from Bilal. Following the race, the colt's owner paid a supplementary entry fee of approximately £15,200 to enter the horse in the Prix du Jockey-Club, reportedly at the urging of Saint-Martin. On 7 June, Natroun contested the 150th running of the Prix du Jockey-Club over 2400 metres at Chantilly Racecourse. In France, horses in the same ownership or stable are coupled for betting purposes. The Vincent O'Brien pair Ancient Times and
American Jockey Club Cup the race was reduced to 2500 metres in 1967 and then to 2400 metres in 1972 before returning to 2500 metres in 1980. The race was run over its current distance for the first time in 1984. Among the winners of the race have been Special Week, Matsurida Gogh, Tosen Jordan and Rulership. Most successful horse (2 wins): American Jockey Club Cup The American Jockey Club Cup (Japanese アメリカジョッキークラブカップ) is a Grade 2 horse race in for Thoroughbred colts and fillies aged four and over run over a distance of 2,200 metres at Nakayama Racecourse. The race is run in