Mountain · Courmayeur to Chamonix, Alps
CCC · UTMB Mont-Blanc
An Alpine route from Courmayeur to Chamonix. The most recently checked page describes the completed 2026 edition.
Distance108 km (2026 course)
DatesNext edition details awaited
Total ascent6,200 m (2026)
Finish cutoff28 hours (2026)
FormatContinuous
Information for2026 reference information
Before you make plans
2026 reference only. The page lists 28 August 2026; we have not verified a 2027 date or course. Entry is subject to UTMB qualification and selection rules.
Follow the official link for the current entry process, course information, checkpoint deadlines and mandatory kit. Availability is not updated live on this page.
Official information checked 9 September 2026. Distances and ascent can change with course revisions.