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 Pin it was run over 1,850 metres (1960–61), 2,100 metres (1962–63), 2,000 metres (1964) and 1,800 metres (1965–69). It was shortened to 1,400 metres in 1970. For a period the Prix du Pin held Listed status. It was promoted to Group 3 level in 2004. Keos finished first in 1997, but he was relegated to third place following a stewards' inquiry. <br> Prix du Pin The Prix du Pin is a Group 3 flat horse race in France open to thoroughbreds aged three years or older. It is run at Longchamp over a distance of 1,400 metres (about 7 furlongs), and