La Combe-Grède
" Chasseral, magnificent view, and the Combe Grède is incredible."La Grandiose, 2026
L'EssentielleLa Grandiose
9th edition · Saturday 25 September 2027 · Tramelan
Trail du Jura bernois
Four courses starting from Tramelan, from your first trail race to the ultra, in a village race its runners recommend.
Thank you for 2026
752 registered, 670 starters. Your photos and results are waiting for you.
The courses
Choose your day
from 13.5 to 66.5 km, through combes and pastures
The same terrain, one step further each year. In 2027, all courses return to their original direction.
13.5 km · 631 m D+
La Découverte
Your first trail race.
Short but punchy: two climbs up to the ridge, then the last 5 kilometres almost entirely downhill to Tramelan.
2025 median time: 1 h 42
View the course
31 km · 1'245 m D+
La Traversée
Wind turbines and pastures.
The Mont-Crosin wind farm, a steep descent to Villeret, then the riverbank to Cortébert.
2025 median time: 3 h 37
View the course
45 km · 2'065 m D+
L'Essentielle
Chasseral and Combe-Grède.
The most beautiful sites of the Bernese Jura in 45 km: Mont-Crosin, the climb to Chasseral via the Combe-Grède and, in good weather, the view over the three lakes.
2025 median time: 6 h 00
View the course
66.5 km · 3'129 m D+
La Grandiose
The ultra, starting by headlamp.
The longest route of the Trail du Jura bernois. Start with headlamps, passing through Chasseral and the Combe-Grède.
2025 median time: 9 h 09
View the courseLa Découverte13.5 km · 1 h 42 minLa Traversée31 km · 3 h 37 minL'Essentielle45 km · 6 h 00 minLa Grandiose66.5 km · 9 h 09 min
0 km70 km
Median times from 2025, an edition run in the same direction as in 2027. Half of the runners finished in less than this time.
Compare the coursesThe terrain
What you'll run through
a real trail, an hour from home
A valley, the Chasseral ridge at 1,600 m, wind turbines and pastures. These are the words of the runners of 2026.
The Chasseral ridge
"The view from the Chasseral ridge."L'Essentielle, 2026
L'EssentielleLa Grandiose
The wind turbines of Mont-Crosin
"Running between the wind turbines of Mont-Crosin."La Traversée, 2026
La TraverséeL'EssentielleLa Grandiose
Tramelan, the village
“Magnificent, no fuss and incredibly friendly.”2025 runner survey
La DécouverteLa TraverséeL'EssentielleLa Grandiose
Coming soonThe film
A day in the Bernese Jura
From the headlamp start to the finish in the village: the 2026 edition in pictures. The film is in the making and will be here very soon.
What runners say
“The atmosphere warms your heart when the going gets tough.”La Grandiose, 2026 Runners Survey
“It was the first trail race of my life. Thanks to you volunteers, everything was perfect. I'll be back with great pleasure!”
“Top-notch organisation, honestly the best in my short experience (only my 3rd trail race).”
“I simply loved your race. Brilliant. Very professional and very accessible, in the sense that it's not too crowded, and I love that.”
“So lovely to see people smiling and ready to laugh, offer a word of encouragement or a tip.”
“The warm, intimate and friendly atmosphere stood out from other events.”
“Smiling, encouraging – above all it's the good mood and the atmosphere that make you come back.”
“It was my first race of this scale, and I have wonderful memories of it and a memorable experience.”
“Huge congratulations on your commitment and the outstanding quality of the organisation of this internationally renowned trail race.”
“The sensations (the effort, the magical scenery, the crazy fun) were worthy of the longest distances!”
“Great day – running with your daughter is the best.”
“Don't change a thing! Top-notch organisation and magnificent courses.”
“Honestly, the best volunteers in the world. Friendly, smiling. Really pleasant.”
“A really beautiful course with little tarmac and varied terrain for a short distance. Great organisation and waymarking.”
“Thank you from the bottom of my heart – you bring a shining event to life in the region!”
752registered in 2026, a record
28nationalities in 2026
34%of registered runners were women
77%of runners who answered the 2026 survey gave us 9 or 10 out of 10
Photos and results
Your photos, free, found by your bib
Every edition since 2018, including over 2'000 photos for 2026, free to download. Plus the full results, with your split times.
Join the adventure
Your place
on the start line, at an aid station or in a team
A village race thrives thanks to those who run it, those who run the show and those who come together.
Run
Take the start
From your first trail race to the ultra, the course that suits you, and one step further the following year.
Choose my course
Volunteers
Take a post
Aid stations, waymarking, bibs, finish: 35 posts. 301 runners left a message for our volunteers in 2026.
Become a volunteer
Together
Come as a team
Club, colleagues, friends: sign up together under the same team name and share the day.
Write to usPractical information
Plan your day
before, during and after the race
The shop
Wear the colours
of the Trail du Jura bernois
Newsletter
Be the first to know
On Saturday 25 September 2027, the Trail du Jura bernois returns to its original direction. Leave your email address: we will send you the registration link as soon as it opens.
Saturday 25 September 2027 · Tramelan
See you
on the trails of the Bernese Jura