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
Allaire du Pont Allaire du Pont, Martha F. Gerry, and Penny Chenery became the first women to be admitted as members of The Jockey Club. The Grade III Pimlico Breeders' Cup Distaff Handicap at Pimlico Race Course was renamed the Allaire du Pont Breeders' Cup Distaff in her memory. Allaire du Pont died January 6, 2006 at her Woodstock Farm near Chesapeake City, Maryland. Allaire du Pont Allaire du Pont (May 4, 1913 – January 6, 2006) was an American sportswoman and a member of the prominent French-American Du Pont family of chemical manufacturers who is most remembered as the owner of the