Marathon from the start at Windsor Castle to the royal entrance to the White City Stadium, followed by a lap (586 yards 2 feet; 536 m) of the track, finishing in front of the Royal Box. The course was later altered to use a different entrance to the stadium, followed by a partial lap of 385 yards to the same finish. The modern standard distance for the marathon was set by the International Amateur Athletic Federation (IAAF) in May 1921 directly from the length used at the 1908 Summer Olympics in London. An official IAAF marathon course is 42.195 km (42
2012 Olympic Marathon Course 2012 Olympic Marathon Course The 2012 Olympic Marathon Course is that of both the men's and women's marathon races at the 2012 Olympic and Paralympic Games in London. The route consists of one short circuit of followed by three circuits of . The course, which was designed to pass many of London's well-known landmarks, starts and finishes on The Mall, within sight of Buckingham Palace, and extends as far as the Tower of London in the east and the Victoria Memorial in the west. The route of the marathon had been changed, for various logistical reasons, from that originally envisaged