Extremo Sul Ultramarathon

NOV
20-22
2026
A 226 km non stop beach ultramarathon in Rio Grande do Sul, Brazil, with a 52 hour limit, mandatory safety equipment and support bases along the linear Chuí–Cassino route.
20-22 Nov 2026
226 kilometers

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Extremo Sul Ultramarathon : Rio Grande do Sul, Brazil

Extremo Sul Ultramarathon is a 226 km non stop foot race along the continuous beach between Chuí and Cassino in Rio Grande do Sul, Brazil, held 20 to 22 November 2026. The event uses a semi‑self‑sufficiency format with organized support bases distributed along the linear route; the total positive elevation gain for the course is 130 m and the official time limit for classification is 52 hours.

The race includes mandatory administrative and technical requirements: entrants must be at least 18 years old, upload a medical certificate, accept the event terms and provide proof of completion of at least one 100 km race since 2024. Participation is limited to a maximum of 100 entries. A SPOT tracking device is mandatory; athletes without their own device can rent one through the organiser’s partner at a stated fee, or pay a lower fee for integration if they own compatible equipment. Two drop bags per athlete are provided and transported between bases.

The organiser lists required safety and equipment items that athletes must carry throughout the event, including lighting (head and rear lights), whistle, operational mobile phone, identification, insulation (thermal blankets or bivouac), hydration capacity of at least 2 litres, appropriate clothing for adverse weather and sufficient food for autonomy between bases. Bases provide water, isotonic drinks, solid food, medical support and rest zones. The event is subject to safety controls, course adjustments and possible neutralization or suspension for environmental or security reasons. Visit the organization's website for the most recent information.

226 km
Endurance
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