Jockey-Club de Paris the "Hippodrome de Chantilly" is the proving-ground of the best of the three-year-olds, the French equivalent of The Derby at Epsom Downs or the Kentucky Derby in the USA. Until 2004, the course was 2400 meters; since then, it has been run at 2100 meters. In France, only the "Prix de l'Arc de Triomphe" has a richer purse (1,600,000 euros); that race was inaugurated by the Jockey Club in 1863 as the Grand Prix de Paris, and run at the Hippodrome de Longchamp. The racecourse was painted by Édouard Manet, Edgar Degas, and Pablo Picasso, among others. Jockey-Club de Paris
Prix du Moulin de Longchamp when the racecourse was built in 1856. The Prix du Moulin de Longchamp was one of two major races introduced to celebrate Longchamp's centenary in 1957. Both initially took place on the first Sunday in October, the same day as the Prix de l'Arc de Triomphe. The other race, the Prix de l'Abbaye de Longchamp, is still held at that meeting. The Prix du Moulin was moved to late September in 1974, and to the first Sunday of that month in 1980. It was formerly contested on Longchamp's middle course (the "moyenne piste"), but was switched to the main course