Prix du Cadran late May. It was opened to geldings in 1986. The race was moved to the Saturday of Prix de l'Arc de Triomphe weekend in 1991. It was later switched to the same day as the "Arc", usually the first Sunday in October. Most successful horse (4 wins): Leading jockey (5 wins): Leading trainer (15 wins): Leading owner (11 wins): The 2016 and 2017 races took place at Chantilly while Longchamp was closed for redevelopment. Prix du Cadran The Prix du Cadran is a Group 1 flat horse race in France open to thoroughbreds aged four years or older. It 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