Jump racing, also known as National Hunt racing, is the code, or discipline, of horse racing that involves negotiating obstacles, usually in the form of hurdles or fences. Some jump racing does, however, take place on specialist ‘cross country’ or ‘bank’ courses, on which some of the obstacles are more akin to those typically found in open countryside. In Britain, with the exception of some National Hunt Flat races, all jump races are run over an ‘official’ minimum distance of at least 2 miles, although on certain racecourses the advertised distance may be slightly shorter. However, the longest jump race staged in Britain is, unequivocally, the Grand National, nowadays run over 4 miles 2 furlongs and 7 yards, at Aintree Racecourse in April each year. Since the advent of so-called ‘summer jumping’, which began in 1995, jump racing is staged throughout the year, although the National Hunt season ‘proper’ lasts from mid-October to late April or early May.