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 Greffulhe the Prix Lupin, the Prix Hocquart and the Prix Noailles. The Prix Greffulhe was restricted to the produce of mares born and bred in France. It was funded by entries submitted before a horse's birth, in the year of conception. The race was abandoned throughout World War I, with no running from 1915 to 1919. It was contested at Le Tremblay over 2,150 metres from 1943 to 1945. The Prix Greffulhe was transferred to Saint-Cloud and shortened to 2,000 metres in 2005. Twenty-three winners of the Prix Greffulhe have achieved victory in the Prix du Jockey Club. The first was