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
2012 Olympic Marathon Course as 42.195 km and specifically state that the course must not be less than this distance. The rules further state that in Olympic competition the standard distance may not be exceeded by more than 0.1%. In order for a marathon performance to be ratified as a world record by the IAAF, the course must also meet other criteria that rule-out "artificially fast times" produced on courses aided by downhill slope or tailwind: the distance between start and end points when measured in a straight line should not exceed 50% of the length of the course (21.092 km in the case