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
Many Clouds Chase Clouds in 2017. Many Clouds Chase The Many Clouds Chase is a Grade Two National Hunt steeplechase in Great Britain which is open to horses aged four years or older. It is run at Aintree over a distance of about 3 miles and 1 furlong (3 miles and 210 yards, or 5,020 metres), and during its running there are nineteen fences to be jumped. It is scheduled to take place each year in early December. The race is sponsored by Rewards4Racing and was first run as a Listed race in 2011. It was awarded Grade Two status and renamed in