Prix de Sandringham du Jockey Club. Prix de Sandringham The Prix de Sandringham is a Group 2 flat horse race in France open to three-year-old thoroughbred fillies. It is run at Chantilly over a distance of 1,600 metres (about 1 mile), and it is scheduled to take place each year in late May or early June. The event was originally called the Prix des Lilas, and it used to be held at Longchamp. During the early part of its history it was contested over 2,000 metres, and it served as a trial for the Prix de Diane. It was cut to its present
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