Trail UTMB TDS
145 km · 9,100 m+
The wildest, most technical race of UTMB week, on remote high-mountain paths from Courmayeur. Rugged, demanding and unforgettable for experienced trail runners.
Fort William, United Kingdom September 19, 2026
A rugged Highland ultra in the shadow of Britain's highest peak. Bog, ridge and glen on a wild UTMB World Series course in the Scottish mountains.
Trail 145 km · 9,100 m+
The wildest, most technical race of UTMB week, on remote high-mountain paths from Courmayeur. Rugged, demanding and unforgettable for experienced trail runners.
Trail 101 km · 6,100 m+
The little sister of UTMB, from Courmayeur to Chamonix over the same legendary trails. A 100 km mountain ultra that is a dream goal in its own right.
Trail 100 km · 5,000 m+
A spectacular alpine ultra in the Coast Mountains around Whistler. Wildflower meadows, glaciers and a UTMB World Series stamp.