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
1999 Grand National 1999 Grand National The 1999 Grand National (known as the Martell Grand National for sponsorship reasons) was the 152nd official renewal of the world-famous Grand National steeplechase that took place at Aintree near Liverpool, England, on 10 April 1999. The race was won in a time of nine minutes and 14.1 seconds and by a distance of ten lengths by 10/1 shot Bobbyjo, ridden by jockey Paul Carberry. The winner was trained by Tommy Carberry in Ratoath, Ireland, and ran in the colours of London-based Irish businessman Bobby Bourke. 32 runners took part and 18 completed the course without mishap,