La Transju'Trails
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About the race
La Transju'Trails is a trail running event held in the Montagnes du Jura around Les Rousses over a weekend in early June. The 2027 edition is scheduled for 5 and 6 June and marks the event's 20th anniversary. Organisers expect more than 7 000 participants based on recent editions.
The programme spreads across two days with multiple race formats and distances, from short runs and a randonnée to long ultratrails. The event also features a village of brands and published information on environmental issues as part of its organisation.
Distances and formats include:
- Ultra 110 km
- Trail 82 km
- Relais 82 km
- Trail 65 km
- Trail 42 km
- Trail 25 km
- Trail 15 km
- Trail 10 km
- Trail 5 km
- Randonnée 15 km
- Trail des jeunes
The presentation of results and partner list are part of the event information. Past reports note close to 7 000 participants across the weekend and a record attendance in 2026. The event is described as an established trail meeting in the Jura mountains with organised race formats for adults and young runners. Visit the organization's website for the most recent information.
