2012 Olympic Marathon Course in London's original 2005 bid for the Games and broke with the normal Olympic tradition that the race finishes inside the main Olympic Stadium. The 2012 Summer Olympics was the third to be held in London. The stated distance of the marathon at the London 1908 Summer Olympics – 26 miles and 385 yards, later converted to metric units as 42.195 kilometres – formed the basis of the standard distance adopted by International Association of Athletics Federations in 1921. The route, as confirmed in October 2010, starts on The Mall about 350 metres from the Victoria Memorial and has four
Marathon later recognized by the race organizers as the women's winner for that year, as well as 1967 and 1968. The length of an Olympic marathon was not precisely fixed at first, but the marathon races in the first few Olympic Games were about , roughly the distance from Marathon to Athens by the longer, flatter route. The exact length depended on the route established for each venue. The International Olympic Committee agreed in 1907 that the distance for the 1908 London Olympic marathon would be about 25 miles or 40 kilometres. The organisers decided on a course of 26 miles