Trail races in Auvergne-Rhône-Alpes — May 2026

The world epicentre of high-mountain trail: Chamonix, at the foot of Mont Blanc, is the birthplace of the UTMB; Annecy, by its turquoise lake, hosts the Maxi-Race. Brutal elevation gain, glaciers, and some of the most photographed alpine landscapes in Europe.

1 race scheduled

Climate in Auvergne-Rhône-Alpes: The safe high-mountain window runs from June to September, when passes and ridges are free of snow. July and August concentrate the bulk of the calendar, with UTMB in late August and Maxi-Race and Marathon du Mont-Blanc in June-July. Outside that window, snow can close the highest sections even in midsummer during years with late thaw.

Race summary

1

Races

20 – 101 km

Distance range

1,450 – 5,400 D+

Elevation range

May

Race months

Intermediate (1)

Difficulty

Tips for running in Auvergne-Rhône-Alpes in may

Sun protection: the sun is already strong in May. SPF 50+ cream, visor cap and sunglasses are essential.

If your race is in high mountains, still bring thermal layers: at high altitudes temperatures can drop below 5 °C.

May has a high volume of races: plan carefully if you have multiple objectives to avoid overtraining.

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Scheduled races

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