Prix Jean Prat metres. For a period it was held in April, and it served as a trial for the Prix du Jockey Club. Both Prix Biennal races were renamed the Prix Jean Prat in 1940. This was in memory of Jean Prat (1847–1940), a successful racehorse owner and breeder. The version for three-year-olds was switched to late May or early June in 1961. It was shortened to 1,850 metres in 1962. It was transferred to Chantilly and cut to 1,800 metres in 1967. The present system of race grading was introduced in 1971, and for several years the event held Group 2
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