Prix du Moulin de Longchamp (the "grande piste") in 1987. The race was rescheduled for mid-September in 2011. Most successful horse: Leading jockey (6 wins): Leading trainer (6 wins): Leading owner (4 wins): The 2016 and 2017 races took place at Chantilly while Longchamp was closed for redevelopment. Prix du Moulin de Longchamp The Prix du Moulin de Longchamp is a Group 1 flat horse race in France open to thoroughbred colts and fillies aged three years or older. It is run at Longchamp over a distance of 1,600 metres , and it is scheduled to take place each year in September. The event is
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