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
IAAF World Half Marathon Championships IAAF World Road Running Championships. Aside from the name change, the significant difference was the distance of the race, changing from a half marathon to a 20 kilometres road race. The 20 km race featured only at the 2006 edition, and the half marathon distance returned for the 2007 World Road Running Championships. On 29 November 2007, the IAAF announced that the name of the competition would revert to its original title of the IAAF World Half Marathon Championships, beginning with the 2008 IAAF World Half Marathon Championships in Rio de Janeiro, Brazil on 12 October 2008. This competition should