Buenos Aires, Autonomous City of Buenos Aires, Argentina
The Buenos Aires Marathon draws approximately 9,000 finishers on an urban road in Buenos Aires, Argentina. The course starts and finishes at the Obelisco on Avenida 9 de Julio. The route passes La Boca, Puerto Madero, Palermo, and the Recoleta district. Mostly flat through the wide avenues of the capital.
Buenos Aires Marathon is a certified 42.195 km (26.2 mile) marathon — the standard World Athletics marathon distance.
The next Buenos Aires Marathon is scheduled for Sunday, 20 September 2026 with a 8:00 am start. The certified course covers 42.195 km (26.2 miles) with 95 m of climbing on a mostly flat with gentle undulations layout.
The Buenos Aires Marathon is a flat loop starting and finishing at the Obelisco on Avenida 9 de Julio, sweeping through La Boca, Puerto Madero, Palermo, and Recoleta. Spectators pack the Obelisco area and line the major avenues through Palermo and Puerto Madero.
The Buenos Aires Marathon course is mostly flat with gentle undulations over 42.195 km (26.2 miles). Runners cover 95 metres of climbing and 95 metres of descent, with minimal net elevation change from start to finish.
Registration is available at maratondebuenosaires.com. As Argentina's largest marathon, it fills up; international runners should register well in advance. Entry fees are competitive, and the event's organisation is considered among the best in South America.
Race-day footage from the course to help you picture the route, crowds, and key landmarks on marathon day.
Last updated 18 July 2026. Edition dates and course details are reviewed regularly.
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