Prix du Gros Chêne 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), and it is scheduled to take place each year in late May or early June. The event was established in 1857, and it was originally contested over 800 metres. Its title refers to a large oak tree which stood in the grounds of the racecourse – the English translation of "Gros Chêne" is "Great Oak". The race was abandoned because
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