British Classic Races contest both. The final leg is the St. Leger, held over 1 mile 6 1/2 furlongs at Doncaster and is open to both sexes. The variety of distances and racecourses faced in the Classics make them particularly challenging as a series to even the best horses. It is rare for a horse to possess both the speed and stamina to compete across all these distances, making the Triple Crown a particularly notable achievement. In fact, in the modern era, it is rare for any attempt on the Triple Crown to be made. Although the oldest race in the series, the
Classic Racing or more laps around the famous 37 ¾ mile long 'Mountain' circuit. The Manx GP is traditionally held at the end of August. The Lansdowne Classic Series hosts the official British Championship for pre-1963 Grand Prix 500cc machines, their other classes serve 350 and 500 machines of the period with various modification regulations. The Lansdowne enjoys a unique link to the Goodwood Revival and the Barry Sheene Memorial trophy race. The International Historic Racing Organisation has been running for over 20 years and organises high level competition for classic racing motorcycles around Europe In the United States Classic Racing is