Mont Blanc 90k

Warning ! Because of snow conditions and replacement of the cable car of la Flégère the organisation has decided to change the time restriction at :

  • Planpraz : modification from 7.00am to 7.30am
  • Flégère : modification from 8.15am to 8.30am

No modification for the other time restrictions (Buet, Villaz, Emosson, Chatelard, Tour, Bois, Montenvers, Refuge du Plan, Chamonix finish line).

The Mont-Blanc 90KM race has become legendary in the Chamonix Mont-Blanc Valley. With its 91km and 6220 meters of vertical, it has been recognized as one of the most technical trail races in France. The 90km race is difficult but it is also one of the most beautiful!

24 hours max to go around the valley of Chamonix Mont-Blanc!
The Mont-Blanc 90km race is one of the most technical ultra trail races and also one of the most demanding in its category with narrow, sometimes exposes paths, snowy sections, and an average altitude above the 2000m mark.
See the sunrise on the Mont-Blanc, cross the Emosson dam in Switzerland, follow along the Mer de Glace glacier, run beneath the Aiguille du Midi and finally come down into the sparkling lights of Chamonix... 

For participate on this race it's recommended having a really good experience in montagne races, to be confident on all the fields and to be autonomous during several hours. We bring your attention that a runner who don't have an ITRA cotation more than 450 points (check here ) as unlikely to finish the race, it's more recommended for him to participate at another races of Mont Blanc Marathon.

Before register, we recommended you to read the rules, the way, the profil, and the time passage file for total know the race difficulties

parcours 90km 2019 public-01    

vignette 90km temps passage

profil 90km du Mont-Blanc 2019-01  

Race bibs distribution :

To get their bibs on the 90km runners will have to show their race bag with all their mandatory equipment to be checked. It will also allow the organisation to put a chronometric chip. No bib will be given to runners who don't have their equipment controlled. No bib will be given less than 30 minutes before the race start.

Mandatory equipment :

  • Working mobile phone. It must work and have a subscruption adapted to the countries (France and Switzerland).
  • A reserve of at least 1 litre of water.
  • Waterproof and windproof jacket with hood (gore tex type) adapted to its size.
  • Clothing hot second layer long sleeve adapted to its size.
  • Headlamp with spare batteries.
  • Survival blanket (140cm x 200cm).
  • Whistle.
  • Personnal cup.
  • ID card with picture. 

Mandatory equipment depending of the weather conditions:

  • Hat.
  • Gloves.
  • Leggings.