PRESS KIT 2025
Wildstrubel by UTMB has now established itself as a landmark event on the international trail running calendar. As President of the Organizing Committee, I am honored to present this edition, which embodies both sporting excellence and the richness of our region.
Our ambition is clear: to offer athletes a unique experience in the heart of the Swiss Alps, while showcasing the exceptional landscapes and cultural heritage of the Valais and Bern cantons. The demanding and spectacular course passes through iconic sites such as Crans-Montana, Leukerbad, Kandersteg, and Adelboden, revealing the full diversity and beauty of our region.
For the media, Wildstrubel by UTMB represents an opportunity to cover an event that blends performance, authenticity, and innovation. This year, we are placing special emphasis on sustainability, inclusion, and the athlete experience, with strengthened measures in logistics, safety, and communication.
I would like to acknowledge the commitment of our partners, local communities, and the hundreds of volunteers who make this adventure possible. Their dedication reflects the strength of our local network and our shared determination to make Wildstrubel shine far beyond the summits.
"Wildstrubel by UTMB is the alliance between the grandeur of the Alpine landscapes and the power of the collective. Every step in the mountains is a story we write together." We invite you to discover, share, and experience this edition with us. Through your reports, images, and interviews, you contribute to making Wildstrubel by UTMB an inspiring showcase of modern trail running.
Ryan Baumann President of the Organising Committee and Race Director of Wildstrubel
by UTMB
Some key figures for this edition:
• Over 6,500 runners expected
• Representing more than 80 nationalities
• 5 races formats for all levels, plus dedicated kids’ races
• Nearly 500 volunteers mobilized across the region
Presentation
HISTORY
Launched in 2022 in Crans-Montana, Wildstrubel by UTMB® is far more than a race — it’s a celebration of mountain culture, human endeavour, and wild beauty.
Nestled in the Swiss Alps between the cantons of Valais and Bern, the Wildstrubel massif offers an exceptional playground with its breathtaking views, lofty ridgelines, untouched valleys and technical trails that wind through authentic, welcoming villages.
Each year runners from across the globe are drawn to this extraordinary setting — ranging from 1,000 to over 3,000 metres in altitude — to take on the challenge, and experience the emotion of crossing the finish line in Crans-Montana.
Soutenu par la Collectivité européenne d’Alsace et la Région Grand Est
Deeply rooted in the local territory, Wildstrubel by UTMB® is powered by the spirit of the region. It takes place in close collaboration with the communities, volunteers and local partners who bring this adventure to life.
THE LOCAL COMMITTEE
Wildstrubel by UTMB® is organised by Trail Valais, a non-profit association based in the heart of the canton of Valais. Driven by a team of dedicated trail running enthusiasts, the association is deeply rooted in the local territory. Its mission?
To promote trail running across Valais by showcasing the region’s extraordinary natural heritage, rich cultural identity, and vibrant local communities.
In joining the UTMB World Series, the Trail Valais association set out with two key ambitions:
- To give runners from Valais the opportunity to collect Running Stones close to home.
- To share the magic of Wildstrubel and the beauty of its landscapes with the global trail running community brought together by the UTMB circuit.
THE WILDSTRUBEL MASSIF
A Tour of the Wildstrubel mountain range:
With four race distances ranging from 20K to 100M, Wildstrubel by UTMB® invites runners on an epic journey through the northern Swiss Alps, tracing a full loop around the Wildstrubel massif.
It is the only event — alongside the HOKA UTMB Mont-Blanc — to offer a complete loop of a mountain range.
Each race offers the chance to experience the massif in a different way: the full circuit, threequarters, half, or a quarter loop.
For its fourth edition, Wildstrubel by UTMB® promises a 100% wild adventure.
All four race formats that award Running Stones — from 20K to 100M — will finish in Crans-Montana.
Additional formats — including Wild Kids, Wild NextGen, Handi-Sport and the Joëlette Race — ensure that everyone can be part of this celebration of sport.
113 km
6 600m D+
Start : CransMontana
Finish : CransMontana
+ 6 500 runners expected across all race formats.
400 volunteers supporting the event.
70 km
4 600m D+
Start : Kandersteg
Finish : CransMontana
Soutenu par la Collectivité européenne d’Alsace et la Région Grand Est
26% female participation across all races.
80 nationalities represented. Top 3 : France, Switzerland, Germany
Start : Leukerbad
Finish : CransMontana
SOLIDARITY 1/2
A strong commitment to solidarity.
In the heart of Valais, we are driven by a shared commitment to helping every individual achieve their own personal victories.
That’s why 100 Charity Bibs are available, offering runners the opportunity to donate to the UTMB Cares endowment fund, which in turn redistributes the proceeds to the associations selected for support.
In addition to Charity Bibs, all runners have the option to make a donation during registration.
In 2025, the following projects will be supported:
• Sport Handicap Sierre
• Académie de Trail Valais
• What's Life Project
• Cap sur toi
100 charity bibs. Each of these bibs includes a donation to the UTMB Cares endowment fund, with a portion of the proceeds directly redistributed to the supported organisations.
Associations supported in 2025.
AGENDA
4 DAYS OF SPORT AND CELEBRATION :
Thursday 18 september :
• 18pm : Opening of the Ultra-Trail Village
Friday 19 september :
• 07:15 – Start of the Wild 70 – Kandersteg
• 14:00 onwards – Arrival of the first Wild 70 finishers
• 19:00 – Start of the Wild Kids race – CransMontana
• 20:30 – Prize giving for Wild Kids and HandiSport
• 21:00 – Prize giving for Wild 70
• 22:00 – Start of the Wild 110 – Crans-Montana
• 22:00 – Live music – Crans-Montana
See full programme.
Saturday 20 september :
• 08:00 – Start of the Wild 50 – Adelboden
• 09:00 – Start of Wild NextGen – Crans-Montana
• 09:15 – Start of Wild 10 – Crans-Montana
• 11:30 onwards – Arrival of the first finishers of the Wild 110 and Wild 50
• 14:00 – Prize giving for Wild NextGen and Wild 10
• 16:00 – Live concert – Crans-Montana
• 20:30 –21:30 – Prize giving for Wild 50 and Wild 110
• 21:00 – Live concert – Crans-Montana
Sunday 21 september :
• 09:30 – Start of Wild 25 – Loèche-les-Bains/Leukerbad
• 11:15 onwards – Come and cheer on the arrival of the first Wild 25 finishers
• 15:45 – Prize giving for Wild 25
• 16:15 – DJ set
WOMEN IN TRAIL
To promote fairness and inclusivity for women in trail running, the UTMB World Series has introduced targeted measures to ensure its races meet the specific needs of female athletes by offering services that support their participation and enhance their race-day experience.
At Wildstrubel by UTMB, the following initiatives will be in place:
• Menstrual products and personal hygiene items will be available at all aid stations for any athlete who may need them.
• Separate and appropriate facilities, including dedicated WCs and changing areas for women and men, will be provided to ensure a respectful and comfortable environment for all.
In addition, UTMB Group has put a Pregnancy Policy in place across all UTMB World Series events. Designed to be flexible and supportive, this policy applies to pregnant athletes, athletes whose partner is pregnant, and those undergoing adoption or surrogacy procedures.
Découvrir la Politique de Grossesse
THE PARLIAMENT CHAMOIS
As part of Wildstrubel by UTMB®, a group of federal parliamentarians from different parties, cantons, and linguistic regions will take on a symbolic sporting challenge: running the flagship race, the Wild 110, as a relay.
From September 19 to 20, 2025, these elected officials will swap suits and parliamentary debates for trail shoes and Alpine paths, demonstrating how the passion for sport brings people together. Each parliamentarian will cover a section of the course, ranging from 11 to 23 kilometers, before handing the baton to a colleague.
The political-sporting relay will unfold as follows:
1st leg (Crans-Montana – Leukerbad): Yvan Pahud (UDC)
2nd leg (Leukerbad – Kandersteg, featuring the legendary ascent of the Gemmi): Andreas Gafner (UDF)
3rd leg (Kandersteg – Adelboden): Andrea Zryd (PS), initiator of this collective adventure
4th leg (Adelboden – Lenk): Candan Hasan (PS)
5th leg (Lenk – Cabane Wildstrubel): Rémy Wyssmann (UDC) and Christophe Clivaz (Les Verts)
6th leg (Cabane Wildstrubel – Tseuzier): Christophe Clivaz (Les Verts)
7th leg (Tseuzier – Crans-Montana): Benjamin Roduit (PDC) and Yvan Pahud (UDC)
Beyond the sporting achievement, this relay is a powerful symbol of understanding and collaboration between political parties and linguistic regions. A strong message carried along the Alpine trails: sport and team spirit first.
The courses
THE COURSES
WILD 110 – 100 M
113 km – 6 600m D+
19 september, start 10pm Crans-Montana
4 Running Stones
The flagship race offers a full tour of the Wildstrubel massif and the Plaine Morte Glacier, crossing 2 cantons, 2 language regions, and 5 internationally renowned destinations.
Link to the course details.
WILD 70 – 100 K
70 km – 4 600m D+
19 september, start 7.15am Kandersteg
3 Running Stones
70km course designed for trail runners looking to take on their first ultra-distance challenge without crossing the symbolic 100km threshold. The route links Kandersteg, nestled at the foot of the Bernese Oberland peaks, with the world-renowned resort of Crans-Montana.
Link to the course details.
THE COURSES
WILD 50 – 50 K
53 km – 3 300m D+
20 september, start 08.00am
Adelboden
2 Running stones
WILD 25 – 20 K
26 km – 1 200m D+
21 september, start 09.30am
Crans-Montana
1 Running stones
Starting in Adelboden, in the heart of the canton of Bern, this course leads runners across the mountains to Crans-Montana in the canton of Valais.
A true taste of Valais: 1 wild climb, 1 scenic stretch through high Alpine pastures, 1 refreshment station at the highest point of the course, and a varied descent through forest, technical terrain and alongside a traditional bisse.
WILD 10
10 km – 500m D+
20 september, start 09.15am
Crans-Montana
A race for all trail lovers – fun, friendly and open to anyone looking to enjoy the mountains in a relaxed and festive atmosphere!
Link to the course details.
Link to the course details.
Link to the course details.
YOUTH RACES
WILD NEXTGEN
10 km – 500m D+
20 september, start 09.00am
Crans-Montana
A brand-new race format for young runners aged 10 to 17. A dedicated 10km course with its own start.
Free entry
Link to the course details.
WILD KIDS YCOOR
1 km – 0m D+
19 septembre, start 7.00pm
Crans-Montana
A 1km fun run for children aged 4 to 7.
WILD KIDS GRENON
2 km – 0m D+
19 septembre, start 7.30pm
Crans-Montana
A 2km race for young runners aged 8 to 13.
Free entry
Free entry
Link to the course details.
Link to the course details.
Environment
ENVIRONMENT
•From its very first edition, Wildstrubel by UTMB has been a pioneer in eliminating disposable cups at aid stations by introducing the mandatory use of a reusable cup, preventing the waste of thousands of plastic cups each year.
•The BYOU (Bring Your Own Utensils) initiative further strengthened this approach by asking each runner to bring their own bowl and utensils, promoting self-sufficiency and reducing disposable tableware.
•Thanks to Näak, energy bars are provided in bulk rather than in individual packaging.
•Aid stations operate without plastic bottles: water and sodas are served in bulk, and 11 out of 12 stations are connected directly to the city’s drinking water supply via tap, completely avoiding plastic bottles.
•This measure helped avoid more than 18,000 bottles last year and significantly reduced the transport linked to bottled water. It will be maintained and expanded for the 2025 edition.
Les favorites
WOMEN'S FIELD
Claire BANNWARTH
France, registered for the 100M
Profil MyUTMB
Léna LAUKNER
Germany, registered for the 100K
Profil MyUTMB
Emilie BULLE
France, registered for the 50K
Profil MyUTMB
Martina BILORA
Italy, registered for the 25K
Profil MyUTMB
Joséphine LAMBIEL
Switzerland, registered for the 10K
Profil MyUTMB
Cristofer CLEMENTE MORA
Spain, registered for the 100M
Profil MyUTMB
Quentin GRATEAU
France, registered for the 100K
Profil MyUTMB
Damien HUMBERT
France, registered for the 50K
Profil MyUTMB
Mattia BERTONCINI
Italie, registered for the 25K
Profil MyUTMB
Gian FREI
Suisse, registered for the 10K
Profil MyUTMB
Amateur runners, Extraordinary journey
AMATEURS RUNNERS
Stéphanie and Cynthia – Swiss
Two lives, one fight, one cause
At 33, Stéphanie and Cynthia both battled breast cancer. Two different journeys, but one fight.
Their meeting at the end of 2024 marked a turning point. What began as a simple exchange grew into a friendship and soon became a shared strength. Trail running became their way of regaining control: breathing, pushing themselves, proving that the disease would not have the last word.
Jérémy - French Running faster than life
At 39, Jérémy will be taking part in the Wildstrubel by UTMB 50K, his first race abroad. Originally from Andlau in Alsace, a former industrial firefighter now retraining, he is currently preparing to open a trail running shop.
A runner since middle school, he discovered trail running in 2014 on a bet and has been racing ever since, notably in the Trail Alsace Grand Est by UTMB. But in 2021, a family tragedy revealed a genetic mutation that left him with two choices: live with a 95% chance of dying before the age of 40, or have his stomach removed.
Today, at 36 and 34, they compete in local races and will participate in the Wildstrubel 20K by UTMB. They have the same goal: to finish, despite the treatments, despite the fatigue. Their motto is simple: step by step, show that after the storm, life goes on.
He chose to have the operation in October 2023. Despite losing 25 kilos, extreme nutritional constraints, and the cautious advice of doctors, Jérémy returned to running in January 2024. He proved that he could run faster than before, at the cost of meticulous management. The Wildstrubel by UTMB represents a new milestone for him: twice the elevation gain of Alsace, spectacular Swiss terrain, and the UTMB atmosphere he loves. More than just
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ACCREDITATIONS
Media accreditation is now open. You can register via this form. All requests will be reviewed and approved prior to the event, with a confirmation email sent to successful applicants.
LOCAL PARTENER'S
Information
THE WORLD'S LEADING TRAIL RUNNING CIRCUIT
the most iconic mountain ranges to hidden gems of the running world, the UTMB® World Series brings together the most exceptional events in a single global circuit.
Organised to the highest international standards, each event unites passionate amateurs with the sport’s biggest stars.
Wherever a runner is in the world, there’s an opportunity to experience the spirit of UTMB close to home.
For those aiming for the pinnacle — the HOKA UTMB Mont-Blanc — these events mark the first step on the journey to the UTMB World Series Finals (OCC, CCC, UTMB).
UTMB World Series
Race calendar
Explore the full UTMB® World Series race calendar here.
OUR PARTNERS
UTMB® WORLD SERIES PARTNERS
OUR PARTNERS
UTMB® WORLD SERIES PARTNERS
MAIN PARTNER
HOKA’s role as Premier Partner of the UTMB® World Series reflects the brand’s rapid rise within the trail running community. First embraced by trail and ultra-trail runners as a leading choice for those looking to reach their full potential, HOKA has since established a powerful presence among ultra-distance athletes, and is renowned for its innovative trail running footwear.
In 2020, the brand expanded beyond high-performance shoes to launch a new apparel range, created in collaboration with leading athletes Jim Walmsley, Magdalena Lewy Boulet and Ludovic Pommeret. HOKA’s global footprint continues to grow at pace, with rapidly developing markets from Europe to Asia matching the momentum of its US operations.
MAIN PARTNER
Dacia serves as Main Partner to the UTMB® World Series circuit in Europe.
The brand and the UTMB® World Series are united by shared core values a spirit of solidarity, a commitment to inclusivity, and a dedication to environmentally responsible practices.
UTMB® WORLD SERIES PARTNER
TECHNICALPARTNER
As the Official UTMB® World Series Technical Partner for on-course sports nutrition and hydration, Näak will provide energy bars, waffles, and drink mixes at the majority of events on the calendar including the season’s flagship race, the Dacia UTMB® Mont-Blanc.
Gels and purées will also be available at aid stations throughout the year as Näak continues to expand its product range. Made from high-quality, sustainable ingredients, Näak products deliver long-lasting energy to help runners go further, for longer. To support race preparation Näak also offers tailored nutrition plans to all participants.
Näak’s slogan,‘Fuel your ultra, preserve your playground,’perfectly reflects the brand’s approach to sports nutrition. From selecting sustainable protein sources and ensuring responsible supply chains to achieving B Corp certification, Näak is committed to protecting mountain playgrounds and creating a positive impact for future generations. All products are made with sustainable proteins and non-GMO ingredients.
TECHNICALPARTNER
Suunto has been supporting adventurers since 1936 and has been part of the trail running world since its earliest days. Its legacy is strengthened by a formidable team of elite athletes, including UTMB® champions Courtney Dauwalter, François D’Haene and Pau Capell.
Renowned for their award-winning design, market-leading battery life, and proven reliability, Suunto watches feature advanced functions specifically developed for both training and competition.
As a Technical Partner and the Official GPS Watch of the UTMB® World Series, Suunto will guide runners on the trails and help them achieve their goals across the circuit’s 50 events, drawing on decades of expertise in GPS sports watch technology. Athletes using the Suunto Vertical or Suunto Race can access intuitive GPS maps in three different styles, highlighting key landmarks, contour lines, water sources, trails and terrain types.
