Les Défis des Chalets - Défi 13k 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 aid station 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 - Les Défis des Chalets - Défi 13k · 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 | km 5.6km 5.6 |
|---|---|
| Water | available |
| Brand products | available |
Elevation profile
The course and its aid stations
Les Défis des Chalets - Défi 13k: 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 1h28 to 1h02, and the aid-station stop budget from 0h02 to 0h01. 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 | 1h28 | 0h02 | — | 88 g | 1 L | 731 mg | +6h32 |
| 550 | 1h21 | 0h02 | — | 81 g | 1 L | 679 mg | +6h39 |
| 600 | 1h17 | 0h01 | — | 77 g | 0.9 L | 640 mg | +6h43 |
| 650 | 1h13 | 0h01 | — | 73 g | 0.8 L | 606 mg | +6h47 |
| 700 | 1h09 | 0h01 | — | 69 g | 0.8 L | 577 mg | +6h51 |
| 750 | 1h06 | 0h01 | — | 66 g | 0.8 L | 548 mg | +6h54 |
| 800 | 1h02 | 0h01 | — | 62 g | 0.7 L | 519 mg | +6h58 |
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
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- Trail Noble Contree - Course du Benou11 km · 469 m D+ · May 1, 2027
- Morobbia Trail - Trail della Croce K1415 km · 1,394 m D+ · May 15, 2027
- SWISS CANYON TRAIL - 16 KM18 km · 538 m D+ · June 5, 2027
- Scenic Trail - K18 Walk & Run20 km · 1,336 m D+ · June 12, 2027
- Stoos-Trail - BAERGLAUF13 km · 1,585 m D+ · July 10, 2027
- Stoos-Trail - ST1010 km · 640 m D+ · July 10, 2027
- Eiger Ultra Trail - E16 - Pleasure Trail17 km · 871 m D+ · July 17, 2027
- Montreux Trail Festival - Freddie's Day12 km · 834 m D+ · July 23, 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 — Les Défis des Chalets - Défi 13k
Weather for Les Défis des Chalets - Défi 13k
The weather for Les Défis des Chalets - Défi 13k 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 Les Défis des Chalets - Défi 13k, hour by hour on the courseFrequently asked questions
How many checkpoints?
Les Défis des Chalets - Défi 13k has 2 checkpoints: 1 aid station and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Arrivée: 7.4 km and 58 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?
Les Défis des Chalets - Défi 13k is 13 km long with 430 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 1h17 for Les Défis des Chalets - Défi 13k.
What's the weather forecast?
The weather for Les Défis des Chalets - Défi 13k 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 Les Défis des Chalets - Défi 13k?
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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