Fiemme Ultra Sky 80km 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 9 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Cut-off times and crew - Fiemme Ultra Sky 80km · 2026
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | Salimekm 9.0 | Baita la Bassakm 19.0 | Baita la Bassakm 23.0 | Passo Feudokm 29.0 | Baito Scofakm 38.0 | Passo Lavazèkm 45.0 | Passo Oclinikm 52.0 | Passo Oclinikm 64.0 | Life Base Varenakm 73.0 |
|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | available |
Elevation profile
The course and its aid stations
Fiemme Ultra Sky 80km: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 15h29 to 9h13, and the aid-station stop budget from 0h52 to 0h17. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 15h29 | 0h52 | 1.5 | 929 g | 10.8 L | 7,738 mg | +8h31 |
| 550 | 14h06 | 0h42 | 0.1 | 846 g | 9.9 L | 7,054 mg | +9h54 |
| 600 | 12h46 | 0h34 | — | 766 g | 8.9 L | 6,385 mg | +11h14 |
| 650 | 11h41 | 0h29 | — | 701 g | 8.2 L | 5,842 mg | +12h19 |
| 700 | 10h40 | 0h24 | — | 640 g | 7.5 L | 5,336 mg | +13h20 |
| 750 | 9h59 | 0h20 | — | 599 g | 7 L | 4,993 mg | +14h01 |
| 800 | 9h13 | 0h17 | — | 553 g | 6.4 L | 4,606 mg | +14h47 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
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Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — Fiemme Ultra Sky 80km
Weather for Fiemme Ultra Sky 80km
The weather for Fiemme Ultra Sky 80km will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for Fiemme Ultra Sky 80km, hour by hour on the courseFrequently asked questions
How many checkpoints?
Fiemme Ultra Sky 80km has 10 checkpoints: 9 aid stations and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Passo Oclini: 12.0 km and 620 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
Fiemme Ultra Sky 80km is 77 km long with 4797 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 12h46 for Fiemme Ultra Sky 80km.
What's the weather forecast?
The weather for Fiemme Ultra Sky 80km will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for Fiemme Ultra Sky 80km?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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