Three trails along the paths of Val Veny and Val Ferret with start and finish in Courmayeur, passing in the municipalities of Pré Saint Didier and La Thuile.

• Ultra Trail 100 km: 100 km with 7900 meters of positive height gain to be completed in 33 hours maximum. It winds along the paths of the Courmayeur, Pré-Saint-Didier and La Thuile territories, mainly developing along the Val Veny and Val Ferret. Qualifying race for Tor des Géants 2024: 100 bibs will be available in 2024 for the finishers of GTC100 2023, who may bypass the draw and register directly for the Tor des Géants 2024.

• Ultra Trail 55 km: 55 km with 3800 meters of positive height gain to be completed in 18 hours maximum. It winds along the paths of the Courmayeur and Pré-Saint-Didier territories, mainly developing along the Val Veny.

• Trail 30 km: 30 km with 2000 meters of positive height gain to be completed in 8 hours maximum. The route runs mainly along the Val Ferret.

Registration on the website 100x100 Trail Portal