 New members are sponsored by two current members and must receive five-sixths of the members' votes.Under the patronage of the Jockey Club, the "Prix du Jockey Club" (1,500,000 euros) has been run at the Chantilly Racecourse (at the foot of the Château de Chantilly) on the first Sunday in June since 1836.The race at the "Hippodrome de Chantilly" is the proving-ground of the best of the three-year-olds, the French equivalent of The Derby at Epsom Downs or the Kentucky Derby in the USA.