2012 Olympic Marathon Course standard length for a marathon, and the 1908 marathon course was originally to have been 25 miles, passing through Uxbridge, Ruislip, Harrow-on-the-Hill before ending at the White City Stadium. It was extended to 26 miles and 385 yards (42.195 km) to avoid troublesome cobbles and tram lines, because of access restrictions at Windsor Castle and to improve visibility to the spectators, including Queen Alexandra, for the finishing stretch inside the stadium. This distance subsequently became the official length of the marathon. In 1948, London hosted the first Olympic Games to be held after World War II the "austerity games". The
Athletics at the 1912 Summer Olympics – Men's marathon finished. These were the standing world and Olympic records (in hours) prior to the 1912 Summer Olympics. The distance was nearly two kilometres shorter; nevertheless, Ken McArthur's winning time is registered as an Olympic record. Athletics at the 1912 Summer Olympics – Men's marathon ] The men's marathon was a track and field athletics event held as part of the athletics at the 1912 Summer Olympics programme. It was the fifth appearance of the event, which is one of 12 athletics events to have been held at every Summer Olympics. The distance used was 40.2 kilometres, nearly 2 full kilometres