TRAIL RACE GUIDE · 2026
UTMB Mont-Blanc
UTMB Mont-Blanc
2026 race guide
Essential information for runners and supporters planning their UTMB Mont-Blanc week, including race details, transport, accommodation and shared ride coordination.
Registrations closed
Updated July 2026
ABOUT THE RACE
One circuit around Mont-Blanc.
UTMB is the 100-mile final of the UTMB World Series and one of the best-known events in international trail running.
The course begins and finishes in Chamonix and follows mountain trails around the Mont-Blanc massif through France, Italy and Switzerland.
Participants face long climbs, technical mountain terrain, changing weather, overnight running and demanding cumulative elevation.
KEY INFORMATION
UTMB Mont-Blanc 2026 at a glance.
Event week
24–30 August 2026
UTMB start
Friday, 28 August 2026 at 17:45
Start and finish
Chamonix-Mont-Blanc, France
Race category
UTMB World Series 100M Final
Distance
174 kilometres
Elevation gain
Approximately 9,900 metres
Maximum race time
46 hours and 45 minutes
Registration status
Closed for 2026
THE COURSE
From Chamonix through three countries.
The UTMB route circles the Mont-Blanc massif through the French, Italian and Swiss Alps.
France
The race starts in Chamonix before runners move through the French side of the massif.
Italy
The course continues into the Aosta Valley and passes through the Courmayeur area.
Switzerland
Runners cross the Swiss section of the route before turning back toward France.
Return to Chamonix
The final section returns to Chamonix for the finish in the centre of the town.
EVENT WEEK
Important 2026 dates.
Event week begins
The full HOKA UTMB Mont-Blanc programme starts, including additional races and event activities.
UTMB bib collection
Official UTMB bib collection is scheduled in Chamonix and Courmayeur. Check the organizer’s current schedule before travelling.
UTMB race start
The main race starts from Chamonix at 17:45 local time.
Event week concludes
Final race activities and the end of the official event programme.
GETTING TO CHAMONIX
Plan your transport early.
Race week attracts thousands of runners, supporters, volunteers and visitors. Accommodation and transport should be arranged well in advance.
TRANSPORT DURING THE EVENT
Use the official mobility system.
Special buses and trains operate during race week for runners and supporters.
Runner transport
Official buses and trains are available for runners. Reservations and access conditions are managed through the runner’s MyUTMB account.
Supporter transport
Supporter mobility passes may be required to access official transport and selected points along the course.
Road restrictions
Roads and parking areas may be closed or restricted. Private-car access to several locations along the course can be limited during race week.
WHERE TO STAY
Accommodation around Chamonix.
Chamonix is the main event hub, but nearby towns and locations connected by public transport may provide additional accommodation options.
- Reserve accommodation as early as possible
- Check late-night and early-morning transport
- Confirm luggage and race-equipment storage
- Check cancellation and date-change policies
- Allow additional time for race-week traffic
SHARED RIDES
Going to UTMB Mont-Blanc?
Use Lumopa to create or discover an invite for UTMB transport, coordinate the details and connect with active people attending the same event.
- Offer available seats
- Look for transport to Chamonix
- Coordinate meeting points and arrival times
- Discuss luggage and race equipment
- Keep communication connected to the invite
GET LUMOPA
Find your pace. Find your people.
Download Lumopa and search for UTMB-related race and shared-ride invites created by the community.
COMMON QUESTIONS
UTMB Mont-Blanc 2026 FAQ.
When is UTMB Mont-Blanc 2026?
The full event takes place from 24 to 30 August 2026. The main UTMB race starts on Friday, 28 August 2026 at 17:45 in Chamonix.
How long is the UTMB race?
The official 2026 race information lists a distance of 174 kilometres and approximately 9,900 metres of positive elevation gain.
Where does UTMB start and finish?
The main UTMB race starts and finishes in Chamonix-Mont-Blanc, France.
Are registrations still open?
No. The official event website currently lists registrations for UTMB 2026 as closed.
Can I organize a shared ride to UTMB?
Yes. Lumopa users can create or discover shared-ride invites and coordinate practical details directly in the context of the invite.
Is Lumopa affiliated with UTMB?
No. Lumopa is an independent community platform and is not affiliated with, endorsed by or operated by UTMB Group.
Important information
This independent guide is provided for general planning purposes. Race dates, schedules, routes, registration conditions, transport arrangements and access rules may change.
Always verify the latest information on the official HOKA UTMB Mont-Blanc website before making travel, accommodation or race arrangements.
UTMB and HOKA UTMB Mont-Blanc are names and trademarks belonging to their respective owners. Lumopa is not affiliated with or endorsed by the event organizer.
Official sources: Event website · UTMB race details · Mobility information