An event involved in sustainable development

2019 registrations

In 2019, the UTMB® will take place from August 26th to September 1st. 171 km & 10 300 m ascent 2 300 runners Start on Friday 30/0...

UTMB® official e-shop

2018 Elite athlete

To define the élite level in our races, we rely on the performance index of the ITRA. It provides an accurate assessment of the pe...

The UTMB®

Mountain race, with numerous passages in high altitude (>2500m), in difficult weather conditions (night, wind, cold, rain or snow)...

Difficulty of the races

Race Average race time Technical difficulty Terrain Requirements Finisher criteria* 10:30 Some difficulties Paths sometimes steep ...

The TDS®

A race in open country along the ‘Grande Randonnée’ paths crossing though the Mont-Blanc, Beaufort, Tarentaise and Aosta valley co...

Let's respect this great playground

Ultra-Trail® : l’environnement est une priorité! par UltraTrailMontBlanc The Mont-Blanc Massif is actually a fragile natural envi...