Prix Bertrand du Breuil Prix Bertrand du Breuil The Prix Bertrand du Breuil is a Group 3 flat horse race in France open to thoroughbreds aged four years or older. It is run at Chantilly over a distance of 1,600 metres (about 1 mile), and it is scheduled to take place each year in June. The earliest version of the event was established at Chantilly in 1852. Its prize money was originally provided by the Chemin de Fer du Nord, a railway company in northern France and the race was titled the Prix de Chemin du Fer du Nord. The first running was a
Jockey Club Stakes one or more of the season's Classic winners. It was extended to 1 mile and 6 furlongs in 1901. The race continued to be staged in the autumn until 1962. It was switched to the spring and cut to 1 mile and 4 furlongs in 1963. It was subsequently closed to three-year-olds. The Jockey Club Stakes is currently held on the opening day of Newmarket's two-day Guineas Festival meeting. It is run on the same day as the 2,000 Guineas. The leading contenders from the Jockey Club Stakes often go on to compete in the Coronation Cup. The last to