Natroun over 2400 metres at Longchamp Racecourse on 7 May. Two weeks later he contested the Prix de l'Avre over the same course and distance and won by five lengths from Bilal. Following the race, the colt's owner paid a supplementary entry fee of approximately £15,200 to enter the horse in the Prix du Jockey-Club, reportedly at the urging of Saint-Martin. On 7 June, Natroun contested the 150th running of the Prix du Jockey-Club over 2400 metres at Chantilly Racecourse. In France, horses in the same ownership or stable are coupled for betting purposes. The Vincent O'Brien pair Ancient Times and
Prix du Bois Papin. The first to win both races was Erica in 1927, and the most recent was Family One in 2011. Prix du Bois The Prix du Bois is a Group 3 flat horse race in France open to two-year-old thoroughbreds. It is run at Deauville over a distance of 1,000 metres (about 5 furlongs), and it is scheduled to take place each year in late June or early July. The event was established in 1925, and it was originally held at Longchamp. It takes its name from the Bois de Boulogne, the location of its former home, and the Avenue