Swiss Alps 100k 2027
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 10 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 - Swiss Alps 100k · 2027
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 | Kühbodenkm 6.7 | Gletscherstubekm 15.5 | Bellwaldkm 24.5 | Reckingenkm 37.9 | Blitzingenkm 43.4 | Chäserstattkm 51.1 | Binnkm 64.8 | Breithornkm 73.4 | Grengiolskm 84.7 | Mühlebachkm 93.1 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | available | available |
La feuille de ton assistance pour Swiss Alps 100k · 2027
Ton assistance peut te voir à ces postes. Ton plan RAVIT y met tes heures, ce qu'elle te tend et la route pour y aller.
- Kühbodenkm 6.7
- Bellwaldkm 24.5
- Reckingenkm 37.9
- Blitzingenkm 43.4
- Chäserstattkm 51.1
- Binnkm 64.8
- Mühlebachkm 93.1
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Swiss Alps 100k: 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 22h12 to 12h50, and the aid-station stop budget from 1h15 to 0h24. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
Below a UTMB® Index of roughly 385, the overall cut-off of 27h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 22h12 | 1h15 | 10 | 1,332 g | 15.5 L | 11,103 mg | +4h48 |
| 550 | 20h12 | 1h01 | 10 | 1,212 g | 14.1 L | 10,101 mg | +6h48 |
| 600 | 18h22 | 0h50 | 10 | 1,102 g | 12.9 L | 9,181 mg | +8h38 |
| 650 | 16h42 | 0h41 | 10 | 1,002 g | 11.7 L | 8,348 mg | +10h18 |
| 700 | 15h13 | 0h34 | 10 | 913 g | 10.6 L | 7,606 mg | +11h47 |
| 750 | 13h56 | 0h29 | 10 | 836 g | 9.8 L | 6,967 mg | +13h04 |
| 800 | 12h50 | 0h24 | 9.3 | 770 g | 9 L | 6,420 mg | +14h10 |
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
- Les Courses du Mont-Terrible - Trail de Calabri71 km · 3,850 m D+ · April 17, 2027
- SWISS CANYON TRAIL - 111 KM117 km · 4,701 m D+ · June 5, 2027
- SWISS CANYON TRAIL - 81 KM84 km · 3,314 m D+ · June 5, 2027
- Scenic Trail - K120 Ultra119 km · 10,618 m D+ · June 11, 2027
- Scenic Trail - K83 Endurance84 km · 6,755 m D+ · June 11, 2027
- Trail Verbier St Bernard - X-Alpine141 km · 9,316 m D+ · July 9, 2027
- Trail Verbier St Bernard - X-Traversee77 km · 5,229 m D+ · July 10, 2027
- Swissalpine - K7880 km · 4,667 m D+ · July 16, 2027
- Eiger Ultra Trail - E101 - Ultra Trail101 km · 6,424 m D+ · July 17, 2027
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 — Swiss Alps 100k
Weather for Swiss Alps 100k
The weather for Swiss Alps 100k 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 Swiss Alps 100k, hour by hour on the courseFrequently asked questions
How many checkpoints?
Swiss Alps 100k has 11 checkpoints: 10 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 Binn: 13.7 km and 853 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?
Swiss Alps 100k is 101 km long with 5883 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 18h22 for Swiss Alps 100k.
What's the weather forecast?
The weather for Swiss Alps 100k 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 Swiss Alps 100k?
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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