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 1908 Summer Olympics – Men's marathon before the Games opened it was realised that the Royal Entrance could not be used as the marathon entrance—it was raised to permit easy descent by the royal party from their carriages, and did not open onto the track—so an alternative entrance was chosen, diagonally opposite the Royal Box. A special path was made from Du Cane Road running due south just east of the Franco British Exhibition ground so that the distance from Windsor to the stadium remained "about 26 miles". The finishing line was left unchanged, but in order that more of the spectators would have a good