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
Prix La Force can serve as a trial for the Prix du Jockey Club. The last horse to win both races was Saonois in 2012. The 2002 winner "Diaghilev" was later exported to Hong Kong and renamed "River Dancer". <br> <br> Prix La Force The Prix La Force is a Group 3 flat horse race in France open to three-year-old thoroughbreds. It is run over a distance of 2,000 metres (about 1¼ miles) at Longchamp in April. The event is named in memory of the Duc de La Force, Bertrand Nompar de Caumont (1840–1909), a member of the Société d'Encouragement. It was established