Chamonix Alpine Half — course characterPhoto · Chamonix
Race Library
Chamonix, France·Europe·JuneIconic

Chamonix Alpine Half

Alpine, technical, high vertical.

Snapped to real footpaths · Garmin · Strava · AllTrails · Komoot · Coros · Wahoo · Apple Watch · outdooractive
Official distance
21.1 km
Elevation gain
+812m
Mindful tempo
6:02 /km — ascending
Character
Alpine, technical, high vertical

Trail half within the Mont Blanc massif — sister event to the UTMB family.

Because earned altitude rewrites what you thought the day could hold.

Granite watches quietly. Every switchback earns its view.

Course

Map & elevation profile

Open in OpenStreetMap
Course line · live Xymove map
Xymove · rendering the line
Xymove Map
21.0975 km loop
Live · pinch, drag, zoom45.924, 6.869
Elevation profile
+812m05111621
+812 m gainPeak 812 m · 21.0975 km
Elevation profile: total gain 812 metres, peak 812 m above start, low 0 m.

A physical profile — respect the ascents; let the descents restore the breath.

Chamonix45.924, 6.869
Race Day

Practical & atmospheric notes

Warm to hot. Early start, shade-line and salt matter — carry more water than you think you need.

A warm regional start — clubs in matching kit, coffee vans, a local mayor with a microphone. Human-scale and unhurried.

Loyal, knowledgeable crowd at trail-heads and villages. Deep silence between — the wind and your breath as company.

A quieter stretch usually opens up between km 7 and km 13 — an interior mile to return to yourself before the final push.

Sealed city tarmac — closed to traffic on race day

Elevation and mixed surfaces make this a physical line. Handcycles only with a support team; sturdy adaptive strollers on the flatter opening kilometres.

WheelchairStroller
Recovery

Cold-stream soak, alpine tea, early bed.

Along the line

Course imagery

Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Wikimedia Commons · Chamonix
Soul-Tuned Variations

One race, three ways to run it.

Contemplative

12 km

6:40 /km

Lower valley loop.

Recovery echo

5 km

7:00 /km

River-flat shuffle.

Stronger

21.1 km

5:20 /km

Push the climb, float the descent.

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