Trail races in Auvergne-Rhône-Alpes — December 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
3 – 15 km
Distance range
50 – 440 D+
Elevation range
Dec
Race months
Difficulty
Tips for running in Auvergne-Rhône-Alpes in december
December has the shortest days: always carry a headlamp even in short races in case it runs long.
Muscle cold increases injury risk: warm up for at least 15 minutes before the start.
December charity races are perfect for group running and enjoying without competitive pressure.
Race map
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Scheduled races
Gear up for the mountains
The right gear makes the difference on race day. Our comparison guides to choose well.
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Essential gear for cold and dark conditions
Key gear for races in winter conditions
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Petzl
Petzl Actik Core
Frontal recargable de 600 lúmenes con batería Core incluida. Compatible con pilas AAA. Modo rojo para preservar la visión nocturna. Ideal para ultras con tramos nocturnos.
Petzl
Petzl Iko Core
Frontal ultraligero de 79 g con diadema AIRFIT y batería trasera para repartir el peso. 500 lúmenes con batería Core recargable (2h30 a máxima potencia, 9h a 100 lúmenes, 100h en modo reserva). Compatible con pilas AAA. Ideal para ultras nocturnas donde el peso en la cabeza importa.
Nitecore
Nitecore NU25
Frontal ultraligero de 56 g con 400 lúmenes y hasta 45 horas de autonomía en modo bajo. Recarga USB-C, doble haz (ancho y foco) y luz roja auxiliar para no deslumbrar en carrera. Opción de entrada muy competitiva en peso para quien no necesita máxima potencia.
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