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
Ellis Park Race Course purses for a five-day race meeting. On November 10, 1922 a 10-day thoroughbred meet with purses of $62,000 was held. The meet was a stop on the train route south to New Orleans for winter racing at Fair Grounds Race Course. These short meets didn't meet the needs of the track and in 1925, after three years of operation, the Green River Jockey Club went bankrupt. In 1925 James C. Ellis, a Rockport businessman, purchased the track, then called Dade Park. He brought about many changes at the track including adding a tote board wagering system and a terrace grandstand.