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iRun42

Trail races in Argentina

1 marathon and 6 ultras on trails in Argentina.

The next one is the Bariloche by UTMB Tronador 130K on 20 November 2026.

The flattest is the Patagonia Run 42K (2,405 m of climbing); the hilliest is the Patagonia Run 100 Miles (9,220 m).

For cool racing conditions, the Patagonia Run 70K usually starts around 8°C.

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