Prix de Royaumont introduced in 1978, and the race was moved to a date earlier than that of the Prix de Diane. The event was staged at Longchamp from 1987 to 1990, and it was transferred to Saint-Cloud in 1991. Its distance was extended to 2,400 metres in 1992, and it continued to take place at Saint-Cloud until 1996. The race's only subsequent departure from Chantilly was in 2001, when it was run at Saint-Cloud. The Prix de Royaumont is now held on the same day as the Prix du Jockey Club. Prix de Royaumont The Prix de Royaumont is a Group 3
George Moore (jockey) Del Mar Racetrack. In 1957 and 1958 George Moore won the Jockeys' Premiership at Sydney then in 1959 accepted an offer to ride in Europe for trainer/owner Alec Head of Haras du Quesnay and another major owner, Prince Aly Khan. There, he won the Prix du Jockey Club and the Prix de l'Arc de Triomphe, as well as a British Classic Race, the 2,000 Guineas. Returning to Sydney, Moore continued to win Jockeys' Premierships and in 1967 returned for a time to compete in Europe for trainer Noel Murless where he won the first three 1967 British Classics, the 1,000