100 Miles

100 Miles

From the dam the course lost more height than it gained: 10,990 m of ascent against 13,000 m of descent, ending at the shore of Lake Geneva. The organiser listed 15 aid stations, two of them welfare stations with drop bags, and one more at the finish. The field was capped at 300 athletes; the course carries six ITRA points and is described as very alpine, technical and demanding, though no qualifying points were required to start.

The organiser expected a duration of two to three days, a fastest time around 22 hours and the last runners at about 56 hours, so most of the field spent at least one night on the course and many spent two. A bus transfer to the start was offered for 5 CHF. This page belongs to the 2026 edition of the 100 Miles.

A race of this length gets followed in shifts, often from a phone in Le Bouveret. On Livebib the runner shares one link; it opens in a browser, with no account and no app, and shows the position on the course line, the distance done and an estimated finish time that updates through the night. When the phone loses signal in a valley or on a pass, the position is carried forward along the course and marked as estimated rather than frozen.