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
2013 Grand National from that I'm OK, it's nothing serious." With two equine fatalities in each of the two previous Nationals, much of the media commentary after the 2013 race hailed the fact that all 40 runners had returned safely to the stables and that only two had fallen at the modified fences. The RSPCA's chief executive Gavin Grant said that his organisation was "delighted that the changes seem to have contributed to a safe yet competitive race." Roly Owers of World Horse Welfare added: "Aintree can take considerable credit for the improvements they have made to the course. It is too early