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 Bois Papin. The first to win both races was Erica in 1927, and the most recent was Family One in 2011. Prix du Bois The Prix du Bois is a Group 3 flat horse race in France open to two-year-old thoroughbreds. It is run at Deauville over a distance of 1,000 metres (about 5 furlongs), and it is scheduled to take place each year in late June or early July. The event was established in 1925, and it was originally held at Longchamp. It takes its name from the Bois de Boulogne, the location of its former home, and the Avenue