TORX TOR450 (Tor des Glaciers) is a 450km loop starting and finishing in Courmayeur, Aosta Valley, Italy, held September 11-19, 2026. The course delivers 32,000m D+ at 71.1 m/km (D+/km rank 24/390 -- top 6% most elevation-dense in the DTR database), following the largely forgotten Alte Vie 3 and 4: ancient glaciers, remote ridges, and high-altitude terrain far from any trekking route.
Limited to 200 runners -- all must have completed TOR330 in under 130 hours. No course markings; GPS navigation required throughout. Three remote mountain lodges serve as life bases, with no outside support between them. Maximum time limit: 190 hours (7.9 days). 2025: 89 finishers from 200 starters (44.5% finish rate); men's winner Sebastien Raichon 124h53m (course record); women's winner Florence Golay-Geymond (women's course record). Race first held 2019.