UTMB
The UTMB closed the 2026 week with the full loop of the Mont Blanc massif, leaving Chamonix at 19:45 on Friday 28 August and returning to the same town.
Chamonix
- Distance
- 174 km
- Ascent
- +10,000 m
- High point
- 2,571 mColle delle Piramidi Calcaree
- Stations
- 26
- Start
- 05:45 PMFri, Aug 28
The course
The whole race, as a ridgeline
▲ high point
UTMB
The organiser gave 174 kilometres and 9,700 metres of climb, with a maximum time of 45 hours 30, which put the final cut-off at 17:15 on Sunday 30 August. Their checkpoint chart sets the shape: Les Houches at 9 km, the low point at Saint-Gervais (809 m) at 23 km, Les Contamines at 33 km, the Col du Bonhomme at 45 km, Les Chapieux, then Col de la Seigne (2,511 m) at 63 km on the Italian border and the Col des Pyramides Calcaires (2,565 m), the highest point, just after it.
Courmayeur came at 83 km, then the balcony past the Bertone and Bonatti refuges, Arnouvaz and the Grand Col Ferret (2,527 m) at 106 km into Switzerland. La Fouly, Champex-Lac at 131 km, La Giète, Trient and Vallorcine at 158 km led to the last climbs via the Tête de Béchar to La Flégère and down to Chamonix. Crew access was at Les Contamines, Courmayeur, Champex-Lac and Vallorcine. The 2026 race was won by Ben Dhiman and Blandine L’Hirondel.
This page belongs to the 2026 UTMB. An evening start means the front runs one night and most of the field two, and the organiser’s timetable for the back of the field reaches Courmayeur only on Saturday afternoon. On Livebib, family and friends open the runner’s link with no account or app, see the position on the course, the distance covered and a finish estimate that updates. Over a col without signal the position is carried forward and marked as estimated.
About UTMB Mont-Blanc UTMB 2026
UTMB Mont-Blanc UTMB 2026 started on Friday, August 28, 2026 at 05:45 PM in Chamonix.
UTMB: 174 km, 10,000 m of climbing, start and finish at Chamonix.
There are 26 stations on the course, 14 of them with a cutoff time.
For the official results, see the organiser’s website: montblanc.utmb.world
Official website: montblanc.utmb.world
UTMB
- What the name means
- Ultra-Trail du Mont-Blanc: one loop of the massif through Italy, Switzerland and France.
- First run
- 2003
At the first UTMB, in 2003, runners could stop and be classified at Courmayeur or Champex instead of going all the way to Chamonix. It was run in rain, cold and hail, only 67 runners completed the full loop, and Dawa Sherpa of Nepal and the American Krissy Moehl won it.
The mountain has rewritten the race more than once. In 2010 overflowing torrents and rockfall forced the organisers to stop it, and it restarted the next day from Courmayeur. In 2012 the weather closed the way into Italy, and the field ran an alternative 110 km route in France with 5,600 m of climbing. The 2020 edition was cancelled because of the Covid-19 pandemic.
Sources: montblanc.utmb.world, montblanc.utmb.world
The climbs
The climbs that decide the day
The course
On the map
Open the full-resolution mapThe course
Marked trails along the course
- Tour du Mont Blanc - Itinéraire principal100.7 km on this trail
- Tour du Saint-Bernard17.7 km on this trail
- 36-Chemin des cols alpins13.7 km on this trail
- Chemin des cols alpins13.2 km on this trail
- Alta Via n. 2 della Valle d'Aosta - Tappa 113.1 km on this trail
- Alta Via n. 1 della Valle d'Aosta - Tappa 1712.1 km on this trail
- Sulle strade dei valdesi: GRV Glorioso Rimpatrio dei Valdesi10.1 km on this trail
- Tour du Beaufortain8.6 km on this trail
- Tour Du Mont Blanc - Variante de Vallorcine8.4 km on this trail
- L’échappée Saint-Nicolataine6.8 km on this trail
- Plan de l'Au > Bovine4.9 km on this trail
- À la découverte du Tramway du Mont-Blanc4.9 km on this trail
The roadbook
Stations
Every station on the course. Life bases carry a barrier clock in race-local time.
Chamonix
173.8 km to Chamonix
0 km1,036 m
- Les Houches9.11,007
- Col de Voza14.31,684
- Saint-Gervais22.6814Fri 10:00 PM
- Les Contamines32.11,147Sat 12:00 AM
- La Balme40.71,708Sat 02:00 AM
- Refuge de la Croix du Bonhomme46.52,447
- Les Chapieux51.61,557Sat 05:15 AM
- Col de la Seigne62.32,501
- Lac Combal68.51,983Sat 10:00 AM
- Arête du Mont Favre72.92,409
- Checrouit - Maison Vieille77.41,963
- Courmayeur Forum Sport Center82.21,189Sat 01:15 PM
- Refuge Bertone87.31,968
- Refuge Bonatti94.92,011
- Arnouvaz100.21,772Sat 06:15 PM
- Grand Col Ferret104.62,526
- La Fouly114.41,595Sat 10:30 PM
- Champex-Lac128.41,474Sun 02:30 AM
- Plan de l'Au133.31,337Sun 03:45 AM
- La Giète139.81,872
- Trient144.71,300Sun 08:00 AM
- Les Tseppes148.61,934
- Vallorcine155.81,261Sun 11:15 AM
- La Flégère1671,865Sun 02:45 PM
- Chamonix173.81,035Sun 04:30 PM
The course moved
What has changed since this course was published
Solid green is where the race runs now. Dashed is the ground it left. Newest change first.
August 19, 2026
0.2 km shorter21 m more climbing173.8 km
km 77.6-79.2between Checrouit - Maison Vieille and Courmayeur Forum Sport Center
km 77.6-79.2 km 84.9-85.1 on the old course The new ground, piece by piece
- Col de Vozanew