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
Maryland Jockey Club growth of Baltimore as an economic center, the Maryland Jockey Club shifted its operations to "Central Course, Baltimore," about five miles southwest of the city on the Frederick Pike. In 1831, President Andrew Jackson became a member of the Maryland Jockey Club and races his very own White House Stable in meets under the name of his secretary, A. J. Donelson. In 1867 the site of present day Pimlico Race Course was incorporated for a track by the state by way of the Maryland General Assembly. In 1868 Saratoga Race Course in New York revived its racing program after its