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
Marathon from the start at Windsor Castle to the royal entrance to the White City Stadium, followed by a lap (586 yards 2 feet; 536 m) of the track, finishing in front of the Royal Box. The course was later altered to use a different entrance to the stadium, followed by a partial lap of 385 yards to the same finish. The modern standard distance for the marathon was set by the International Amateur Athletic Federation (IAAF) in May 1921 directly from the length used at the 1908 Summer Olympics in London. An official IAAF marathon course is 42.195 km (42