Marathons and running races in South America

20 marathons, 18 half marathons and 13 ultras in 9 countries across South America.

The next one is the FCV Bucaramanga Half Marathon on 11 October 2026.

The flattest marathon is the Porto Alegre Marathon (20 m of climbing); the hilliest is the Patagonia Run 42K (2,405 m).

For cool racing conditions, the Buenos Aires Half Marathon usually starts around 9°C.