Ultra Trail du Mont Blanc 2025: Early start, modified section due to a rockslide, and no refreshment station... Changes announced by the organizers for the 2025 edition.
Changes, but no revolution. In a statement on their social media, the UTMB organizers announced some changes for the next edition, which is scheduled to start on Friday, August 29th. The start has been moved up fifteen minutes to 5:45 p.m.
Recent rockslides between Chamonix and Les Houches have led the teams to rethink this section of the course. After several field studies, a variant was chosen to ensure the safety of participants.
Also, to limit the impact on the Contamines-Montjoie Nature Reserve, the La Balme refreshment point (at the 40th kilometer) will be removed this year, 2025.
The final UTMB course will therefore be 174 km and 9,900 elevation gain, compared to 176 km and the same elevation gain last year.
Le Dauphiné