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The Extremo Sul Ultramarathon is a 226 km ultramarathon along the largest beach in the world, starting in Chuí and passing through Santa Vitória do Palmar and Rio Grande. It offers a unique blend of nature, tradition, and adventure.
Largest beach in the world
Coastal scenery
Cultural journey through southern Brazil
Qualification
Start / Finish
Chuí, Brazil
Rio Grande, Brazil
Getting There
What to bring
Headlamp
Red rear light
Whistle
Operational mobile phone with charged battery
Identification document
Thermal insulation: 2 thermal blankets + 1 bivouac sack, or 4 thermal blankets
Hydration pack or vest
Reservoirs with minimum total capacity of 2 liters
Sufficient food for autonomy between aid stations
Second layer long-sleeve clothing
Good quality windproof and waterproof jacket
What you get
Race kit
Sports insurance
Special event souvenir
2 drop bags
Bib number
Drinks and food at aid stations
Medical support
Drop bag transport
Transport from Cassino to Chuí
Transport to finish in case of abandonment
Awards ceremony
On the day
Marshals on course
First aid on course
Before you enter
Other questions
The elevation gain is +130 meters and loss -130 meters.
Participation is solo.
Yes. In some parts of the course isolation is total. The feeling of isolation will be greater the further into the night you go.
The course is essentially on the beach, except for the connecting kilometers between Chuí and Barra do Chuí which are on asphalt and RS 699.
No. Support outside aid stations is penalized with disqualification. Assistance outside aid stations is only allowed by the organization and for medical help.
Chuí, Brazil
Friday, November 20, 2026
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€64
entry fee