Utmb 2024 Registration. The 2024 utmb will run from monday, august 26, until sunday, september 1. Kodiak ultra marathons by utmb is the start towards your quest to the utmb world series finals in chamonix, the mythic utmb mont blanc, the holy grail of trail running in the.

With multiple races taking place throughout the event, here are the start dates and times. If you think you have a valid utmb index and are having problems accessing registration, make sure you are logged into your my.