Registration

• Race bib
• Race t-shirt
• Personal collapsible cup
• Access to aid stations
• Final and intermediate timing
• Medical assistance
• Finisher medal, special finisher gift, or finisher belt buckle: depending on distance
• Post-race food

Withdrawal Information: This registration is non-refundable and non-transferable. All paid entries are eligible for a one-time, for-any-reason deferral to next year’s event. All deferral requests will be honored until September 9, 2026. Click here to submit a deferral request.

• Runners who register within 50 days prior to Race Day will not have race materials personalized (name on merchandise apparel and name on race bib).
• Runners must be at least 18 years old to participate in the 100M, 100K and 50K, 16 years old to participate in the 21K, and 12 years old to participate in the 10K.
• Online Registration Closes: Sunday, October 4, 2026, at 11:59pm PT or until the races are sold out.
• We do not maintain a waiting list for our events.
• We will take onsite registration at the expo for any open distances. There is NO RACE DAY REGISTRATION.
• Distance Changes: Requests to move to a shorter distance must be submitted to the event email listed below and completed by Thursday, September 3rd, 2026. No distance changes will be permitted after that date. Changes to a longer distance are not allowed if the requested distance has sold out.
• Reference the "REGISTRATION INCLUDES" section on this page for withdrawal information.
• For questions, please fill out this form.

HOKA Kodiak Ultra Marathons by UTMB is a UTMB World Series Major. This event is the start towards your quest to the UTMB World Series Finals in Chamonix, the mythic HOKA UTMB Mont Blanc, the holy grail of trail running in the heart of the Alps, set on the three key distances: OCC (50K), CCC® (100K) and UTMB® (100M), the pinnacle trail running event.

As a UTMB World Series Major Event, 60 runners are also granted automatic qualification for the UTMB World Series Finals through each Major. The top 10 female and male runners in the 100M, 100K and 50K categories.

Also, because HOKA Kodiak Ultra Marathons by UTMB is a UTMB World Series Major event, all finishers of the Kodiak Ultra Marathons by UTMB collect double the Running Stones that can be applied to the HOKA UTMB Mont-Blanc draw. To be eligible for the lottery, runners need to have a least one Running Stone and a valid UTMB Index.

HOKA Kodiak Ultra Marathons by UTMB is a dual qualifier for the iconic UTMB World Series Finals and the Western States Endurance Run. Earn double the running stones and get your UTMB Index when you complete the 100M, 100K, 50K or 21K race. And, finish the 2026 100M race in less than 36 hours and the 100K race in less than 18 hours will have your 2027 Western States Qualifier.

UTMB strongly believes in equal rights and opportunities for all members of the trail-running community. We are in the process of building inclusion and diversity policies on gender, race, age, social class and more. We endeavour to grow and continue to evolve the sport and to make UTMB World Series welcoming for each athlete.

You will automatically receive a confirmation email upon completing your registration.

Your age group category for the event you registered for will be reflective of your age as of December 31 of the event year.

Your name, and the names of other starters, is searchable via The Runner Start List or on UTMB Live prior to your race.

Online registrations are synced to our database within 24 hours. You can login to check your registration status, below: