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
Grand Prix du Comminges different route. The hilly terrain allowed for excellent viewing close to the beginning and end of the race from atop a hill at the outskirts of Saint-Gaudens. In 1926, the French Grand Prix was held here over a slightly altered course and in the 1930s, the course layout was modified a few times beginning with changes made to accommodate holding the official French Grand Prix in 1928. At the 1932 race, a stroke of luck saved several spectators from death. René Dreyfus was leading in his Bugatti going into the final lap. Rain fell and on the wet road he