Trail running at the foot of Mont Blanc
The Gran Trail Courmayeur (GTC) is one of the most prestigious trail running events in the Alps. Organized by VDA Trailers, the same company behind the legendary Tor des Géants, it brings hundreds of athletes to Courmayeur (Aosta Province) every summer to run on the trails at the foot of the Mont Blanc massif, with start and finish in the heart of the resort.
The event offers three routes suitable for different levels of preparation:
The rankings are validated by ITRA and the GTC100 awards finishers the points needed to enter the draw for the Tor des Géants, for which it serves as a sort of antechamber. The main technical sponsor is La Sportiva. The link with the Tor des Géants and the TORX ecosystem places the GTC among the most sought-after races by trail runners worldwide.
What makes the GTC unique is its setting: the trails wind through the peaks, glaciers, and refuges of the Mont Blanc area, offering competitors some of the most spectacular panoramas in the Alps. A total sporting challenge, but also an immersion in the nature of the Aosta Valley.
The Gran Trail Courmayeur 2026 returns from July 10 to 12 with its three races on the Mont Blanc trails. The GTC100 (100 km, 7,400 m D+, max 33 hours) starts at night at 10:00 PM; the GTC55 (55 km, 3,500 m D+) at 7:00 AM; the GTC30 (30 km, 2,000 m D+) at 9:00 AM. Organized by VDA Trailers, the event has ITRA rankings and awards GTC100 finishers bibs for the Tor des Géants lottery. Main sponsor La Sportiva.
Start and finish in the center of Courmayeur. GTC100 finishers receive 100 bibs valid for the draw for the Tor des Géants, regardless of their ranking. Rankings validated by ITRA. Online registration at gtcourmayeur.com.
Courmayeur can be reached by car via the A5 motorway, Courmayeur exit. The races start and finish in the town center.
Registration is done online through the TORX platform (my.experience.torxtrail.com). Full information at gtcourmayeur.com.
Mid-July event. Mandatory mountain trail equipment (technical clothing, safety gear) is essential for athletes.
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Courmayeur, comprensorio del Monte Bianco
Courmayeur, 11013 Courmayeur