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
Jockey Club of Canada Jockey Club of Canada The Jockey Club of Canada was formed in 1973 to oversee thoroughbred horse racing in Canada. Based in Toronto, Ontario, the club is responsible for the annual Sovereign Awards program and the Canadian Graded Stakes Committee. Founding members: Each year, the Club's Canadian Graded Stakes Committee meets to review open Thoroughbred horse races. To be eligible for graded stakes race status, a race must offer a minimum purse in an amount determined by the Committee. As at 2008, there are thirty-seven Canadian graded stakes races of which all but five are run at Toronto's Woodbine Racetrack.