2013 Grand National to modifications made for the previous year's race, Aintree announced that a number of further changes had been made for the 2013 National. Twelve of the 16 fences on the course were rebuilt with the timber frames within them replaced by a softer material known as "plastic birch". The fences are still covered with at least 14 inches of spruce and will remain the same height. The starting line was also moved 90 yards closer to the first fence, further away from the spectators' stands and thereby reducing slightly the overall distance. Aintree and the Professional Jockeys' Association jointly issued
1997 Grand National 1997 Grand National The 1997 Grand National (known officially as the Martell Grand National and also informally as the Monday National) was the 150th official running of the Grand National steeplechase held at Aintree near Liverpool, Merseyside. The race was scheduled to be run on Saturday 5 April 1997, but was postponed by two days to Monday 7 April after a Provisional Irish Republican Army (IRA) bomb threat forced the evacuation of the course. The race was won in a time of nine minutes and 5.9 seconds and by a distance of 25 lengths by New Zealand-bred Lord Gyllene at