When is Marathon du Mont-Blanc 2026?
Thursday, 25 June 2026
Race date
Thursday, 25 June 2026
Chamonix-Mont-Blanc
Race completed
Next edition (estimated date)
- 202724 June 2027estimated date
Date estimated from the previous edition. The organiser has not published the official schedule yet; we will update this page as soon as it is confirmed.
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Add race dateExpected weather
12° – 23°
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💧
43%
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💨
7 km/h
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☀️
14h
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Race summary
Distance
88K
Elevation Gain
5,500m D+
Terrain
Ultra Trail
Difficulty
Elite
Distances
| Ultratrail 88km | 88K | 5,500m D+ | – |
| Marathon 42km | 42K | 2,730m D+ | – |
| Cross 23km | 23K | 1,200m D+ | – |
| Trail 10km | 10K | 500m D+ | – |
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