Les Courses du Mont-Terrible 2027

17.04 – 12.04.2027Porrentruy (Switzerland)

Pacing, fueling and crew sheet for the course you pick

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9 courses · 5–106 km3.1–65.9 mi · up to 4’990 m D+up to 16’371 ft D+

At a glance

Les Courses du Mont-Terrible 2027 takes place from Saturday 17 to Monday 12 April 2027 in Porrentruy (Jura, Switzerland). 9 courses from 5 to 106 km.

Longest course: Ultra Trail de Mont-Terrible, 106 km with 4’990 m D+ (47 m per km: mountain terrain). It has 20 aid stations.

On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

The Mont-Terrible Races are a sporting event organized by a team of passionate volunteers. The proceeds are used for the preparation of the next edition and for the operation of the Fontenais…

From the organiser

9 courses

5km3.1mi
133 m D+436 ft D+
194 m D-636 ft D-
avg 3%
La Tchouatte
11.04.
No index
GPX
9km5.6mi
290 m D+951 ft D+
392 m D-1’286 ft D-
avg 3%
La Fontenelle
11.04.
No index
GPX
13km8.1mi
Déi des marais
No index
15km9.3mi
540 m D+1’772 ft D+
847 m D-2’779 ft D-
avg 4%
La Brère
11.04.
GPX
23km14.3mi
850 m D+2’789 ft D+
1’103 m D-3’619 ft D-
avg 4%
La Terrible
11.04.
GPX
36km22.4mi
1’360 m D+4’462 ft D+
1’676 m D-5’499 ft D-
avg 4%
Trail De Pietchesson
11.04.
GPX
50km31.1mi
2’490 m D+8’169 ft D+
3’019 m D-9’905 ft D-
avg 5%
Trail De Outremont
11.04. · 8 aid stations
GPX
70km43.5mi
3’630 m D+11’909 ft D+
3’906 m D-12’815 ft D-
avg 5%
Trail De Calabri
11.04. · 11 aid stations
GPX
106km65.9mi
4’990 m D+16’371 ft D+
avg 5%
Ultra Trail de Mont-Terrible
11.04. · 20 aid stations

Course analysis

70 km43.5 mi3’630 m D+11’909 ft D+

106effort kmⓘ70 km on the map · feels like 106 km43.5 mi on the map · feels like 106 km

D+: 3’630 m11’909 ft
D−: 3’906 m12’815 ft
Max alt.: 995 m3’264 ft
Steepest: 16%

Segments

Elevation profile: Trail De Calabri

440 m – 995 m1’444 ft – 3’264 ft

Terrain

Aid station by aid station

Terrain, climb and cutoff between each aid station.

Start → Bressaucourt km 0 → 10.1km 0 → 6.3
10.1 km6.3 mi · +571 m1’873 ft · −438 m1’437 ft
Bressaucourt → Sur-les-Roches km 10.1 → 15km 6.3 → 9.3
4.9 km3 mi · +408 m1’339 ft · −97 m318 ft
Sur-les-Roches → Col de Montvoie km 15 → 20.8km 9.3 → 12.9
5.8 km3.6 mi · +265 m869 ft · −372 m1’220 ft
Col de Montvoie → Bellefontaine km 20.8 → 28.4km 12.9 → 17.6
7.6 km4.7 mi · +413 m1’355 ft · −715 m2’346 ft
Bellefontaine → St-Ursanne km 28.4 → 35.4km 17.6 → 22
7.1 km4.4 mi · +398 m1’306 ft · −371 m1’217 ft
St-Ursanne → Outremont aller km 35.4 → 38.1km 22 → 23.7
2.7 km1.7 mi · +339 m1’112 ft · −91 m299 ft
Outremont aller → Grand-Roche km 38.1 → 47.5km 23.7 → 29.5
9.4 km5.9 mi · +547 m1’795 ft · −433 m1’421 ft
Grand-Roche → Cabane des Ordons km 47.5 → 51.6km 29.5 → 32
4.1 km2.5 mi · +140 m459 ft · −227 m745 ft
Cabane des Ordons → Outremont retour km 51.6 → 58km 32 → 36
6.4 km4 mi · +349 m1’145 ft · −293 m961 ft
Outremont retour → Cabane forestière Courgenay km 58 → 63.2km 36 → 39.2
5.2 km3.2 mi · +191 m627 ft · −506 m1’660 ft
Cabane forestière Courgenay → La Roche-à-la-Ronde km 63.2 → 68.6km 39.2 → 42.6
5.4 km3.4 mi · +284 m932 ft · −260 m853 ft
La Roche-à-la-Ronde → Finish km 68.6 → 70km 42.6 → 43.5
1.5 km0.9 mi · +3 m10 ft · −54 m177 ft

Elevation figures are measured by Kliva on the course trace. Cutoffs are the organiser's.

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Les Courses du Mont-Terrible, in one roadbook.

Includes this race's official aid stations and cutoff times.

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