Prix du Gros Chêne horse, Fine Art. The race returned to its original venue, Chantilly, in 1957. The present system of race grading was introduced in 1971, and for a period the Prix du Gros Chêne held Group 3 status. It was promoted to Group 2 level in 1988. The race is now held on the same day as the Prix du Jockey Club. Prix du Gros Chêne The Prix du Gros Chêne is a Group 2 flat horse race in France open to thoroughbreds aged three years or older. It is run at Chantilly over a distance of 1,000 metres (about 5 furlongs),
Prix du Cadran 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 run at Longchamp over a distance of 4,000 metres (about 2½ miles), and it is scheduled to take place each year in early October. It is France's most prestigious race for "stayers" – horses which specialise in racing over long distances. It is the French equivalent of the Gold Cup, the leading stayers' race in Great Britain. The event is named after a clock face ("cadran") at the École Militaire, a building located alongside