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Our philosophy

Run light

The Trail du Jura bernois passes through pastures, forests, the Combe-Grède and the Chasseral. We want it to pass through without leaving a trace, and to remain a village race.

Good habits on the course Practical information

What matters to us

Three thingswe've cared about since 2018

Accordion players sitting in front of the hall on race day
01

A village race

Everything starts at the Salle de la Marelle in Tramelan, and everything returns there: race bibs, starts, finish, meals. Around a hundred volunteers staff the various stations. We're growing, without losing that spirit.

The intimate and friendly atmosphere contrasted sharply with that of other events. 2026 Runners Survey, La Découverte
  1. La Découverte 13.5 km
  2. La Traversée 31 km
  3. L'Essentielle 45 km
  4. La Grandiose 66.5 km
02

A race for everyone

Four courses, from your very first trail to the longest day of your season. Same start, same finish, same welcome for everyone, from first to last.

Wooded pasture in the Bernese Jura, lone fir trees on the grass
03

Nature first

Chamois, hares, roe deer and foxes live where we run. These trails are open to us for one day: we leave them just as we found them.

A runner with poles on a trail in the fog, marker flags planted in the grass
The markings show you the way.

On the course

We're counting on youthree habits, from start to finish

  1. Stay on the marked trails

    Cutting a corner damages the ground and the meadows. The markings are there for you: follow them, even when a shortcut looks tempting.

  2. Keep your rubbish until the next aid station

    Gel and bar wrappers included. A pocket in your pack is enough, and a bin awaits you at the next station.

  3. Leave the wildlife and plants in peace

    Slow down if you meet an animal, and don't pick anything. Dogs stay at home on race day, even on a lead.

At the aid stations

Your cupalways with you

On every course, your own cup is part of the compulsory kit. At aid stations and water points, you drink from your own: that's fewer disposable cups on the trails and in the bins.

On La Découverte, a water bottle is fine too.

A soft cup weighs just a few grams and folds into a pocket of your pack. Remember it when you get your kit ready the night before.

  • La Grandiose5 aid stations and 1 water pointMandatory
  • L'Essentielle 4 refueling stops Mandatory
  • La Traversée2mandatory aid stations
  • La Découverte1 water point, cup or water bottleCompulsory

At the start and finish

At La Marelle, less waste, fewer cars

Dishes washed, not thrown away

The hall's dishes and cups are reusable. They're rented and washed by the dishwashing workshop of the Fondation La Pimpinière in Tavannes, where people with disabilities work.

Sorting, everywhere

PET, paper, glass: follow the signs on site. Not sure? Ask a volunteer.

Come by train, or carpool

Tramelan station is a five-minute walk from the hall. If you're driving, think about carpooling: parking spaces are limited. Getting here

A volunteer serves a plate of pasta in the Marelle kitchen

Got an idea to do better?

Less waste, less traffic, something we haven't thought of: write to us.

Email info@utjb.ch Meet the committee