Prix du Jockey Club initially 2,500 metres, and this was cut to 2,400 metres in 1843. It was switched to Versailles during the Revolution of 1848, and it was cancelled due to the Franco-Prussian War in 1871. The race was abandoned in 1915, and for three years thereafter it was replaced by the Prix des Trois Ans. This took place at Moulins in 1916, Chantilly in 1917 and Maisons-Laffitte in 1918. The first two runnings after World War I were held at Longchamp. A substitute race called the Prix de Chantilly was run at Auteuil over 2,600 metres in 1940. The Prix du Jockey
Maryland Jockey Club Maryland Jockey Club The Maryland Jockey Club is a sporting organization dedicated to horse racing, founded in Annapolis in 1743. The Jockey Club was founded more than 30 years before the start of the Revolutionary War and is chartered as the oldest sporting organization in North America. After 267 years it remains the corporate name of the company that operates Pimlico Race Course in Baltimore, Maryland which opened in 1870, Laurel Park Racecourse in Laurel, Maryland which opened in 1911 and Bowie Race Track in Bowie, Maryland which opened as race course in 1914 and ceased operations as a track