Polytechnic Marathon the event, and the Polytechnic Marathon was born. The first Polytechnic Marathon was held on 8 May 1909. Henry Barrett won, followed by Fred Lord, and Harry Green. As with the Olympic race, the start was at Windsor Castle and the course was 26 miles, 385 yards; this distance was adopted as the international standard for marathons in 1924. (The older Boston Marathon, founded in 1897, adopted the distance in 1924, but was slightly short for the first three years and was shorter still from 1951 to 1956.) Over the years, the route of the Poly Marathon varied. From 1909
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