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
Jockey Club Stakes one or more of the season's Classic winners. It was extended to 1 mile and 6 furlongs in 1901. The race continued to be staged in the autumn until 1962. It was switched to the spring and cut to 1 mile and 4 furlongs in 1963. It was subsequently closed to three-year-olds. The Jockey Club Stakes is currently held on the opening day of Newmarket's two-day Guineas Festival meeting. It is run on the same day as the 2,000 Guineas. The leading contenders from the Jockey Club Stakes often go on to compete in the Coronation Cup. The last to