Buenos Aires Marathon Buenos Aires Marathon The Maratón de Buenos Aires is an annual marathon foot-race which takes place in Buenos Aires, Argentina, during the Southern Hemisphere's Spring, usually in October. The 21st edition of the Buenos Aires Marathon started on October 9, 2005 at 7:30 at the 9 de Julio Avenue and Córdoba Avenue in the Recoleta neighbourhood, being the start also the ending point after the 42.195 kilometres (26 miles and 385 yards) of the classic race. The course visited many important spots of the city, featuring Callao Avenue, the River Plate Stadium, Libertador Avenue, Palermo neighbourhood, Corrientes Avenue, passing by
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