The large athletics stadium at Grangemouth was officially opened on 9th July 1966 and its inclusion in Doors Open Days is part of the 50th anniversary celebrations. The venue rapidly became a national centre for events and in 1967 the Scottish Paraplegic Games were held there. The stadium was designed by the architects Wilson & Wilson, and constructed by Chisholm & Co. A major innovation was the use of a rub-cor all-weather running track. In 1997 a £1.2 million investment saw a 60m indoor synthetic running track constructed to the east of the stand. For the first time athletes could train in all weathers. In 2004 it was extended, doubling its size to over 2100 square metres to create one of the best sports facilities in Scotland - home for the National Indoor Athletics Academy. The 2014 Commonwealth Games athletics track at Hampden Park was lifted and moved to Grangemouth Stadium as part of the Games legacy programme.