Registration

Sales period

Registration will be open to the runners with a valid UTMB index from 9 December 2026 onwards.

From 11 December 2025 onwards, registrations will be open to runners with or without valid UTMB index until 3rd of September 2026 until midnight or until the races are sold out.

Entries will be made exclusively on the internet and payment will be made by credit card. Registration on the day of the event will only be possible if the distance is not fully occupied. There will be no waiting list.

IMPORTANT TO NOTE: The registration fee, amounting to 8%, is not included in the listed price.

Additionally, keep in mind that for distances of 50km, 80km, and 120km, there is an extra fee of €15 for the bus transfer from Kranjska Gora to the starting point. Please be aware that there is no bus service available from the finish line back to the starting point.

WHAT IS INCLUDED:

• Personalized race bib.
• Access to aid stations with food and drinks during the race and at the finish line.
• Official JATR by UTMB running shirt.
• Finisher’s medal.
• Post-race meal.
• Transit bag transport (for runners on the 50 km, 80 km, and 120 km distances).
• Access to changing rooms and showers after the race.
• Resting area.
• Medical assistance.
• Emergency rescue assistance if needed.

Age categories:

*On 10 km trail, there will be a a separate NEXT GENERATION 10 km race for young runners aged 10 to 18.

TRANSFER OF REGISTRATION TO ANOTHER PERSON

Registration is personal; however, we allow transferring a registration to another runner if the original registrant cannot attend the race. Transfers are possible until August 18, 2026, provided the new runner meets the registration criteria.

Important: A transfer fee of 20 EUR applies.

• The registered runner can access their personal area (“dashboard”). Inside the dashboard, the runner has the option to transfer their registration to a friend (“Transfer registration to a friend”). They enter the email address of the new runner and send them an invitation.
• The new runner completes their registration through the link provided in the invitation email. As part of the process, the new runner pays a €20 transfer fee.
• Once the new runner finalizes their registration and pays the fee, the original runner’s registration is automatically cancelled.

For assistance with transferring a registration to another person, runners can contact info@trailrun.si.

Changing the runner after August 18, 2026 is no longer possible. Please take this into account.

CHANGE OF DISTANCE

Transferring to a shorter distance is possible until August 18, 2026, subject to availability in the selected distance. In this case, no refund for the price difference will be issued.

It is also possible to request a transfer to a longer distance; however, the request will not be automatically accepted and will be decided upon by the race director. Transfers to a longer distance are only possible if spots are available.

Runners can make the distance change themselves (they will receive access to their profile in the email confirmation, where they can edit the change).

Changing the race distance is no longer possible once the course is full or after August 18, 2026. Please take this into account.

IMPORTANT: Transfers to the 2027 event are not possible.

Insured Registrations

Registration insurance for the event in case of inability to participate can only be purchased during registration. The insurance allows the runner a 100% refund of the entry fee if they cannot attend the race (with appropriate documentation) due to any of the following reasons:

• Illness, accident, injury, chronic health issues
• Public/private transport failure
• Theft of documents, legal summons
• Etc.

Runners can submit a refund claim through their UTMB profile. Runners will communicate directly with the insurance company.

Uninsured Registrations

Participants who cannot attend the event due to health reasons and have already paid the entry fee can request a partial refund by contacting info@trailrun.si. The runner must submit an official medical document (e.g., certificate, doctor's note, etc.) with the refund request.

Refunds are as follows:

• Until May 1, 2026: 60%
• Until August 1, 2026: 30%
• After August 1, 2026: No refunds, regardless of the reason the runner cannot attend the event. If the runner does not attend the event, they forfeit the race packet and all other benefits offered to participants, regardless of the reason.

Event Cancellation in Extraordinary Circumstances

In the event of race cancellation due to extraordinary circumstances, the organizer guarantees a refund of the entry fee if the event is prohibited or cannot be held due to exceptional circumstances, as follows:

• Cancellation 4 months before the event: 90% refund
• Cancellation 2 months before the event: 70% refund and a 20% discount for the following year
• Cancellation 14 days before the event: 60% refund and a 20% discount for the following year
• Cancellation less than 14 days before the event: No refunds.

In case of event cancellation, the organizer will also offer the option to transfer the entry fee to the 2027 event.

To award high-level athletes fair recognition and ensure fair management of applications, we have specially reserved spots for elite athletes based on their UTMB index for the selected distance. Elite runners must apply during the registration period. Applications will not be accepted after the registration period has ended.

When the distance is sold out, the event organizer reserves the right to refuse the application of an elite runner.

Minimum UTMB index given access to a free registration:

Elite runners can submit their request to info@trailrun.si.

Free registrations for elite runners cannot be guaranteed in the following circumstances and are subject to the race director's discretion:

• For races that are sold out,
• After the registration period has ended,
• Less than 30 days before the event.

Media representatives, influential athletes, or individuals with a large following on social media who believe their participation could add value to JATR by UTMB can send their application and request for participation to info@trailrun.si.

See the requirements to qualify as an elite athlete here >> Elite Runners.

Do I need a medical certificate to participate in the race?

A medical certificate is not required for participation. Everyone competes at their own risk.

As part of its ongoing commitment to increasing inclusion and gender equality in trail running, UTMB has expanded and renamed its policy to Paths to Parenthood. The policy supports athletes on their journey to parenthood – including pregnancy, medically assisted reproduction (MAR), adoption, or surrogacy, as well as their partners.

WHO IS ELIGIBLE?

The following athletes are eligible:

• pregnant athletes,
• athletes with a pregnant partner (due date within ±3 months of the event),
• athletes undergoing medically assisted reproduction (MAR),
• athletes who are adopting a child or becoming parents through surrogacy.

IMPORTANT

The policy applies even if the pregnancy, MAR, or other process was already known at the time of registration. Eligibility applies regardless of the outcome (including miscarriage or unsuccessful MAR procedures). Benefits can be requested at any time between registration and race day.

OPTIONS

• full refund of the registration fee (excluding additional services), or
• deferral of registration for up to 2 years to the same or a shorter distance.

ADDITIONAL INFORMATION

Deferral can be repeated if the athlete meets the eligibility criteria again (e.g. MAR → pregnancy). For races requiring a valid UTMB Index, athletes must ensure it is valid at the time of registering for the deferred race. Request deadlines are before the opening of registrations (later requests are subject to availability). The organizer may request additional documentation while respecting the athlete’s privacy.

REQUIRED DOCUMENTATION

To benefit from the policy, athletes must provide:

• a medical certificate confirming pregnancy,
• confirmation of MAR treatment,
• proof of relationship (for partners),
• adoption or birth certificate (≤6 months before the race).

DATA PRIVACY

Due to legal requirements, organizers do not collect medical records (such as ultrasound scans), but only basic medical certificates.

OFFICIAL UTMB POLICY

You can view the full official policy here: Paths to Parenthood Policy (PDF)

CONTACT: info@trailrun.si

In the ongoing effort of UTMB to increase and encourage the participation of adaptive athletes in trail running, UTMB has implemented a new adaptive athlete policy across all UTMB World Series events.

ELIGIBILITY CRITERIA

This policy will apply to athletes in the adaptive athlete open division. Participation in the Adaptive Athlete Open Division is available to athletes with the following disabilities:

Visual Impairment:

Athletes with a medically verified visual impairment that meets the following criteria:

• Visual acuity of 20/200 (6/60 meters) or less in the better-seeing eye with best conventional correction.
• Visual field (the total area an individual can see without moving the eyes from side to side) of 20 degrees or less (also called tunnel vision) in the better-seeing eye.

Intellectual Disability (ID):

Athletes with an intellectual disability (as defined by the American Association of Intellectual and Developmental Disabilities) that meets the following criteria:

• IQ below 70-75.
• Significant limitations in adaptive behaviour, including communication, social, and self-care skills.
• The condition originates before the age of 22.
• Athletes with an Intellectual Disability should be registered athletes with Special Olympics, a current registered athlete with a Virtus National Member Organization, or a similar organization.

Physical or Neurological Movement Impairment:

Athletes with a medically verified physical or neurological movement impairment that substantially limits one or more major life daily activities.

Athletes with other miscellaneous medical conditions, such as intolerance to temperature extremes, organ transplants, joint replacements (endoprosthetics), kidney dialysis, hearing impairments, and cognitive impairments (except for individuals with an intellectual disability), are not eligible to participate in the Adaptive Athlete Open Division.

ADAPTIVE ATHLETE OPEN DIVISION REGISTRATION

Athletes are required to fill out the "Adaptive athlete open division" form and send it to the race organizers for approval. This process is mandatory to benefit from the adaptive athlete policy.

GUIDE RUNNER POLICY

All adaptive athletes are allocated an extra bib number, free of charge, for a guide runner to accompany them on all or parts of their race.

Conditions and requirements:

• The adaptive athlete must be able to self-propel themselves the entire distance of the course within the official time limits.
• Guide runners do not have to be of the same gender as the adaptive athlete.
• Securing the guide is the responsibility of the adaptive athlete. You must contact the race organization prior to the end of the registration period to confirm your guide runner.
• Athletes that have a visual impairment or intellectual disability are required to have a guide for the duration of the event.
• An elbow lead tether is required during night for athletes that have a visual impairment.
• Guide runners must have a valid UTMB Index for races that require one to ensure sufficient performance level.
• The runner and their guide runner must each carry their own mandatory kit. The guide runner is only able to help carry extra equipment necessary for the athlete and morally support their athlete. No other outside help or assistance is tolerated. All other race regulations are applicable.
• Each adaptive athlete is allowed to have one guide runner. Athletes may contact the organization if they feel they need other support or help.
• The guide runner will not be awarded a UTMB Index or any running stones for their participation.
• For athletes with a physical impairment, their guide runner can only enter/exit the race at the start and finish line and aid stations. Athletes are required to inform the race organisation if their guide runner will not be running the entire race with them.

This policy is a first step in ensuring better opportunities for inclusion and equal access for all athletes. In addition to this policy, we are actively working to address the unique needs of our adaptive athletes during and around our events. We remain committed to reviewing and refining this policy over time, making necessary modifications or additions in consultation with the athlete community and our organization's stakeholders.

We believe that trail running can make a positive contribution to the preservation of the environment and educate the public about the need to consider the impact of our activities on the planet. Our sport has a unique power to drive wider social change that prioritizes sustainable development so that the beauty of our nature can be enjoyed by future generations.

Each of us can help make the event friendly to the environment in which it takes place. With our activities we try to spread green awareness and be an example of good practice.

By registering and participating at Julian Alps Trail Run by UTMB, runners commit to:

• respect the rules of behaviour in protected areas,
• use the prescribed mandatory equipment for their own safety,
• not dispose waste, walk or run outside the marked paths, pick flowers,
• separate waste, drink water from the tap, save natural resources,
• respect wild animals,
• respect the local environment and local population,
• and encourage others to do the same.

Organizers of Julian Alps Trail Run by UTMB are aware that the event's sustainability policy is key to its long-term development and proper integration into the local community. We want to work for the good of the natural environment, in which the event takes place, and the local community. We try to spread green awareness among all event participants. Only with common action will we be able to continue enjoying the wonderful nature and unforgettable trails.

In the process of organizing and implementing the event, we follow the guidelines of sustainable sports events and ensure that the event is developed with the motto of responsible business, which minimizes negative impacts on nature and the social environment as well as preserves and highlights the peculiarities of the natural and social environment in which it takes place.

In the organization and execution of the Julian Alps Trail Run by UTMB, we pursue the following guidelines:

• We respect the conditions defined by environmental legislation in Slovenia and the carrying capacity of the space.
• The race starts take place in destinations that have committed themselves to the sustainable development of tourism.
• We monitor the impacts of our activities on the environment and introduce measures to reduce these impacts.
• We actively work to involve local communities, follow interests of the local population and develop the event in a way that brings positive results for everyone. Wherever possible, we work with local providers.
• Visitors and partners are encouraged to have a respectful and responsible attitude towards the natural and social environment. We inform them of our efforts and encourage their cooperation and support.
• Every year we prepare a plan of measures to be implemented. We believe in the policy of small and manageable steps, which we will build on year after year.
• The entire organizing team and all those who help in the implementation of the event are familiar with the sustainability policy, goals and measures.

We upgrade sustainable practices every year with small steps. We are committed to continuously improving the sustainability of our event, and we encourage our visitors to do the same. In addition to preserving the natural environment, our mission is also the promotion of the development of a healthy and inclusive society, and the support to the local community and economy.