Date
Fri, 20 Nov 2026
Start
11:00
Venue
Start: Avenida Brasil at the intersection with Avenida do Uruguai, Chuí
Chuí, Rio Grande do Sul
Countdown
November
Run the whole length of a beach, non-stop, from Chuí to Cassino. Over 226 km with almost no climbing, so the fight is against distance, sand and two nights awake.
Key facts
01Must have finished a 100 km or longer race since 2024
02Medical certificate required, plus the responsibility waiver
0352-hour cut-off, with seven support bases and two drop bags
Create a free training plan for the Extremo Sul Ultramarathon
7-day free trial, no card required
The course
The route
Chuí
Distance227km
Total climb130m
StartElevation
0 kmDrag map to rotate224.0 km
Weather
Mid-November, Chuí
25°CTypical high
14°CTypical low
7°CColdest in 20 years
24%Days with rain
Highs around 25°C and lows around 14°C, but it has dropped to 7°C. Rain on 24% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserHorizontes, Turismo Desportivo, lda
Websitehorizontes.pt
Instagram@extremosulultramarathon
Running since2015
Training
Training for the Extremo Sul Ultramarathon
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Extremo Sul Ultramarathon plan targets
Typical sessions
227 km with 130 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Extremo Sul Ultramarathon plan.
7-day free trial, no card required.
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