Trail des Hérétiques 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 5 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 - Trail des Hérétiques · 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 | Molières-sur-l'Albertekm 20.0 | Greffeilkm 34.0 | Ladern-sur-Lauquetkm 40.0 | Palaja Montjausse (camp de Villemaury)km 52.0 | Arrivée Carcassonne, salle du Dômekm 62.0 |
|---|---|---|---|---|---|
| Water | available | available | available | available | available |
| Brand products | available | unavailable | available | available | available |
| Hot meal | unavailable | available | unavailable | unavailable | unavailable |
Elevation profile
The course and its aid stations
Trail des Hérétiques: 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 9h40 to 6h05, and the aid-station stop budget from 0h16 to 0h06. 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 370, the overall cut-off of 13h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 9h40 | 0h16 | 3 | 580 g | 6.8 L | 4,834 mg | +3h20 |
| 550 | 8h53 | 0h13 | 3 | 533 g | 6.2 L | 4,440 mg | +4h07 |
| 600 | 8h07 | 0h11 | 3 | 487 g | 5.7 L | 4,061 mg | +4h53 |
| 650 | 7h35 | 0h09 | 3 | 455 g | 5.3 L | 3,790 mg | +5h25 |
| 700 | 6h59 | 0h08 | 3 | 419 g | 4.9 L | 3,496 mg | +6h01 |
| 750 | 6h33 | 0h07 | 3 | 393 g | 4.6 L | 3,273 mg | +6h27 |
| 800 | 6h05 | 0h06 | 3 | 365 g | 4.3 L | 3,039 mg | +6h55 |
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
- Trail du Haut Clunysois - La Saint Cyr45 km · 1,466 m D+ · October 17, 2026
- Trail en Côte-Rôtie - L'AOC46 km · 2,290 m D+ · October 17, 2026
- Metis Trail54 km · 2,654 m D+ · October 17, 2026
- Trail en Côte-Rôtie - L'AOC en Duo46 km · 2,290 m D+ · October 17, 2026
- Trail du Haut Clunysois - La Camille Forest66 km · 2,311 m D+ · October 17, 2026
- Festival Des Templiers - Boffi Fifty47 km · 2,342 m D+ · October 17, 2026
- Salomon EcoTrail Paris - Automne - Trail 50km53 km · 680 m D+ · October 17, 2026
- Salomon EcoTrail Paris - Automne - Trail 80km79 km · 982 m D+ · October 17, 2026
- Pierre Buffière - La TimGroup41 km · 1,331 m D+ · October 18, 2026
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 — Trail des Hérétiques
Weather for Trail des Hérétiques
The weather for Trail des Hérétiques 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 Trail des Hérétiques, hour by hour on the courseFrequently asked questions
How many checkpoints?
Trail des Hérétiques has 6 checkpoints: 5 aid stations and 1 checkpoint without aid station (Lac de Cavayère, km 6.0). Details are in the two tables above.
What's the longest segment without aid?
The one leading to Molières-sur-l'Alberte: 20.0 km and 772 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?
Trail des Hérétiques is 62 km long with 2408 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 8h07 for Trail des Hérétiques.
What's the weather forecast?
The weather for Trail des Hérétiques 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 Trail des Hérétiques?
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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