Registration 2024

Registration for the 2024 Mont Blanc Marathon is online only, with payment by credit card.

Registration for the 2024 Mont Blanc Marathon will take place in 2 phases:

Draw for the Duo Etoilé, 23km, 42km and 90km of the Mont-Blanc 2024.

Runners wishing to take part in the Duo Etoilé, 90km, 42km, 23km du Mont-Blanc 2024 will be able to register free of charge for the draw from Friday, October 20, 2023 at 9:00 am to Monday, November 6, 2023 at 12:00 pm. It will be possible to register for just one of the 4 races, as a group or as an individual (draw result identical for all group members). The results of the draw will be communicated by e-mail on Friday, November 10, 2023. Runners selected in the draw will then have until noon on Wednesday November 22, 2023 to finalize their registration by making their payment (a specific procedure will be sent to them by e-mail).

For all races not subject to a draw (10km, KMV, Young Race, Mini cross)

Registration from Monday November 13, 2023 at 9:00 am. Registration will be possible without a draw until all available places have been filled.

NEW FOR 2024: the Star Duo is now subject to a draw. 

I would like to register for 2024

Choosing your race

The Mont Blanc Marathon races take place in the mountains, on technical courses with significant differences in altitude. To take part in these races, it is recommended that you have good mountain running experience, are at ease on all types of terrain and are self-sufficient for several hours. We remind you that it is generally considered that 100 m of positive ascent corresponds to 1 km of additional running.

For example: the 42km Mont-Blanc with a positive altitude difference of 2730m, corresponds to a distance of 42km + 27km, or 69km. We therefore recommend that you take into account the difference in altitude before registering for a race.

I'm registering for 2024

RaceDistanceDiff of heights +/-Distance FeelsMax timeNumber of Time restrictionsITRA points recommendedNumber of participants% of FinishersTechnical features
Logo 90km du Mont-Blanc
91km6220m +/-152km24 hours104501000 runners55%Technical race with aerial trail in altitude, possibility of snow on the course
Logo 42km du Mont-Blanc
42km2730m+ / 1700m-69km9 hours 3053502300 runners87%Rolling first part, and some trails are very technical with an important difference of heights 
Logo 23km du Mont-Blanc
23km1680m+ / 870m-39km6 hours42702000 runners94%Short race on mountain trails open to intermediate trailers
Logo Duo étoilé du Mont-Blanc
20km1250m +/-32km6 hours3240500 teams97%Night race by team mountaineering and steep parts
Logo Kilomètre vertical
3,8km1000m +/-13,8km-0-700 runners100%Aerial race , handrail, stairs etc. not recommended to people afraid of heights.
Logo 10km du Mont-Blanc


10km325m +/-13km-01601000 runners99%Race open to everybody
Logo Young Race Marathon
15km1200m D+27km-00150 runners98%Race reserved to 'Espoir' and 'Junior' category

Solidarity bibs

Since 2016, the Club des Sports de Chamonix has been selling solidarity bibs to fund sporting projects.

In 2023, thanks to the €70,000 raised, 250 young people from 11 sections were able to make their dreams come true.

For runners, it's the chance to guarantee their entry in one of the Mont Blanc Marathon races by making a donation to help children in their sporting projects.

To find out more 

Groupe de skieurs
Groupe de cyclistes
Sportif qui effectue un saut à ski
Snowboardeur en pleine action sur une piste enneigée
Remise des prix d'équitation
Groupe de jeune devant une piscine
Groupe de skieurs

Tour operator

Plan your trip to Chamonix with our Tour Operator partners. 

Sports Tours

Logo sports tours international

Sport Tour International offers travel and assistance packages for this wonderful event. A guaranteed race number and hotel accommodation in the center of Chamonix are available, as well as transfers from Geneva airport and the support of an experienced race guide. 

Run the Alps

Logo Run the Alps

Our aim? To find the best trail running experiences in the Swiss, French and Italian Alps. Away from the crowds, in the villages of the high Alpine mountains, we'll be looking for trails that are a little quieter, wilder and bring together all the best the Alps have to offer.