Trail RunningHalf Marathon

Duo Étoilé

27 June 2026

Chamonix-Mont-Blanc, Auvergne-Rhône-Alpes, France

Race details

Modality

Pairs

Organizer

Marathon du Mont-Blanc

Distance

21 km

Elevation

+1,450 m

Participants

7,494

Start time

20:00

Terrain

Trail

Difficulty

Advanced

Course profile

Mountainous

Minimum age

18+

Certified

Circuit

Marathon du Mont-Blanc

Event description

The Duo Étoilé is a captivating night-time trail race for teams of two, held as part of the iconic Marathon du Mont-Blanc event in Chamonix. Participants tackle a challenging 21km course with 1450m of elevation gain, offering a unique atmosphere and stunning mountain views under the stars.

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In the news

⛰️ Trail Running22 Jun 2026

Chamonix Under Pressure: Golden Trail Series Braces for Rémi Bonnet’s Record Attempt

Rémi Bonnet threatens the historic Mont-Blanc Marathon record in an edition defined by extreme speed and a race against the clock in Chamonix.

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Sport

Trail Running

Distance

Half Marathon

Country

France

Region

Auvergne-Rhône-Alpes