Fiemme Ultra Sky - Fiemme Sky Marathon 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile and an estimated finish time based on your UTMB Index.
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 - Fiemme Sky Marathon · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 53.2 | 3,295 m | 53.2 | 3,295 m | 3,295 m | — | Sun 12:00 AM |
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
Aid station contents not documented.
Elevation profile
The course and its aid stations
Fiemme Ultra Sky - Fiemme Sky Marathon: 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 8h01 to 5h12, and the aid-station stop budget from 0h17 to 0h06. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 8h01 | 0h17 | — | 481 g | 5.6 L | 4,012 mg | +6h59 |
| 550 | 7h22 | 0h14 | — | 442 g | 5.2 L | 3,682 mg | +7h38 |
| 600 | 6h48 | 0h12 | — | 408 g | 4.8 L | 3,401 mg | +8h12 |
| 650 | 6h24 | 0h10 | — | 384 g | 4.5 L | 3,197 mg | +8h36 |
| 700 | 5h57 | 0h09 | — | 357 g | 4.2 L | 2,977 mg | +9h03 |
| 750 | 5h35 | 0h07 | — | 335 g | 3.9 L | 2,792 mg | +9h25 |
| 800 | 5h12 | 0h06 | — | 312 g | 3.6 L | 2,603 mg | +9h48 |
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.
Other trails worth preparing for
- Ultra Trail Lago d'Orta - UTLO 60km58 km · 4,468 m D+ · October 17, 2026
- Panoramic Trail - 46k45 km · 3,571 m D+ · October 18, 2026
- Trail del Diamante Memorial Cristiano Capelli - Ultra del Diamante 45KM46 km · 2,949 m D+ · October 18, 2026
- ULTRA PIGLIONE TRAIL57 km · 3,760 m D+ · October 18, 2026
- LONG PIGLIONE TRAIL37 km · 2,405 m D+ · October 18, 2026
- Valle dei Segni Wine Trail - 55K57 km · 3,362 m D+ · October 24, 2026
- TRAIL MONTE CASTO - 44 KM45 km · 1,968 m D+ · October 25, 2026
- Puglia - Ginosa Rivolta Trail36 km · 362 m D+ · October 25, 2026
- Puglia - Castellaneta Underground Trail54 km · 990 m D+ · October 25, 2026
Sources and method
- Time projection — les temps par cote sont repris des passages réels des coureurs de chaque tranche sur les éditions précédentes de cette course, arrêts aux ravitaillements compris. Aucune formule n'intervient tant que ces résultats existent.
- 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 - Fiemme Sky Marathon
Weather for Fiemme Ultra Sky - Fiemme Sky Marathon
The weather for Fiemme Ultra Sky - Fiemme Sky Marathon 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 - Fiemme Sky Marathon, hour by hour on the courseFrequently asked questions
How many checkpoints?
Fiemme Ultra Sky - Fiemme Sky Marathon has 1 checkpoint: 1 checkpoint with undocumented contents. Details are in the two tables above.
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 - Fiemme Sky Marathon is 53 km long with 3295 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 6h48 for Fiemme Ultra Sky - Fiemme Sky Marathon.
What's the weather forecast?
The weather for Fiemme Ultra Sky - Fiemme Sky Marathon 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 - Fiemme Sky Marathon?
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