Arosa Trailrun - AT33 2027
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 - Arosa Trailrun - AT33 · 2027
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 32.8 | 1,988 m | 32.8 | 1,988 m | 1,988 m | — | Sat 05:00 PM |
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
Arosa Trailrun - AT33: 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 4h48 to 3h06, and the aid-station stop budget from 0h10 to 0h04. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Below a UTMB® Index of roughly 340, the overall cut-off of 7h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 4h48 | 0h10 | — | 288 g | 3.4 L | 2,396 mg | +2h12 |
| 550 | 4h20 | 0h08 | — | 260 g | 3 L | 2,169 mg | +2h40 |
| 600 | 3h58 | 0h07 | — | 238 g | 2.8 L | 1,984 mg | +3h02 |
| 650 | 3h43 | 0h06 | — | 223 g | 2.6 L | 1,857 mg | +3h17 |
| 700 | 3h29 | 0h05 | — | 209 g | 2.4 L | 1,744 mg | +3h31 |
| 750 | 3h18 | 0h04 | — | 198 g | 2.3 L | 1,651 mg | +3h42 |
| 800 | 3h06 | 0h04 | — | 186 g | 2.2 L | 1,554 mg | +3h54 |
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
- Ascona-Locarno - 24K25 km · 1,353 m D+ · October 24, 2026
- Ascona-Locarno - 42K42 km · 2,673 m D+ · October 24, 2026
- Fribourg - 34km-night34 km · 1,072 m D+ · December 12, 2026
- Les Courses du Mont-Terrible - Trail d'Outremont52 km · 2,923 m D+ · April 17, 2027
- Les Courses du Mont-Terrible - Relais 70K - Relais 237 km · 1,945 m D+ · April 17, 2027
- Les Courses du Mont-Terrible - Relais 70K - Relais 135 km · 1,909 m D+ · April 17, 2027
- Les Courses du Mont-Terrible - La Terrible23 km · 947 m D+ · April 17, 2027
- Les Courses du Mont-Terrible - Trail de Pietchiesson36 km · 1,593 m D+ · April 18, 2027
- Trail Noble Contree - Trail NBC26 km · 1,431 m D+ · May 1, 2027
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 — Arosa Trailrun - AT33
Weather for Arosa Trailrun - AT33
The weather for Arosa Trailrun - AT33 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 Arosa Trailrun - AT33, hour by hour on the courseFrequently asked questions
How many checkpoints?
Arosa Trailrun - AT33 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?
Arosa Trailrun - AT33 is 33 km long with 1988 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 3h58 for Arosa Trailrun - AT33.
What's the weather forecast?
The weather for Arosa Trailrun - AT33 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 Arosa Trailrun - AT33?
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