Utmb 2024 Dates Chamonix 2024. The ultimate reference in trail running. ‘chamonix in utmb week is the one time of the year when trail runners get to experience what it’s like to be a.
In 2023, the utmb started at 1800 local time (1700 bst) on friday september 1, 2023, with runners having 46 hours 30 minutes to complete the course. — the history of the utmb.