SUMMUM

TAKE ON THE ULTIMATE CHALLENGE

A challenge against yourself, facing yourself, connected to yourself

SUMMUM
Mont Blanc

4,808 meters above sea level, a giant that commands respect at first glance, a challenge where every step brings you a little closer to the sky.

SUMMUM Kilimanjaro

3,800 meters to cover in rugged terrain, a test of total endurance where the mind takes over when the body tires.

SUMMUM
Fuji

Information coming soon

SUMMUM
Mauna Kea 

Information coming soon

Summum, an adventure that spans the globe

Interactive Map of the Mountains
World map
Mauna Kea 4,207 m Hawaii, United States
Mauna Kea
Mont Blanc 4,808 m France/Italy, Europe
Mont Blanc
Kilimanjaro 5,895 m Tanzania, Africa
Kilimanjaro
Mount Fuji 3,776 m Japan, Asia
Mount Fuji

Summun, the ultimate triathlon for athletes from all over the world!

Summum is an ultimate triathlon designed for athletes who want to experience an extraordinary challenge. This event combines swimming, running, and cycling in locations around the world, with different environments at each stage: volcanoes, legendary mountains, oceans, and extreme landscapes. More than just a series of disciplines, Summum is a real challenge that tests your endurance, adaptability, and effort management.

Each location imposes its own constraints: altitude, climate, distances, terrain. To move forward, learn to stay focused, manage your pace, and control your mind. This is what makes Summum the ultimate challenge: a sporting journey that requires both physical strength and inner stability. Step by step, participants discover their limits... and the satisfaction of pushing beyond them.

For many, this triathlon becomes as much a personal journey as it is a sporting one. Participants seek to perform well, but also to surpass themselves, discover new things, and experience the unique feeling of having taken on a challenge that few dare to attempt. Summum is not just a competition: it is a universal adventure that transforms every athlete as the kilometers pass.

A challenge against oneself, facing oneself, connected to oneself.

Explore your limits on every continent with Summum 

On Summum, your mind becomes your driving force. Between the ocean, the asphalt, and the heights of the far reaches of the world, you will learn to overcome doubt, fatigue, and fear. With mental preparation methods developed by Cyril Blanchard, Enduroman record holder, you will discover how to stay focused, move forward with clarity, and find serenity in the midst of effort.

Customizable Stats Section
254+
Years of Experience
Finishers Summum 90%
Athletes in training 90%
Record Summum Mont Blanc 9:12 p.m.

Visit the most beautiful peaks in the world

A Triathlon Against Yourself

To be completed in less than 24 hours

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The ultimate: everyone else has already left, what about you?

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Solo finishers
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Sub-24h Legends
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% success rate Coached
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Years of stories

The Summum Finishers, click and be inspired!

#4 Arnaud Naudan

Arnaud Naudan

#3 Julien Deneyer
: THE ULTIMATE LEGEND

Julien Deneyer

#1 Cyril Blanchard
: THE ULTIMATE LEGEND

Cyril Blanchard

#2 Goulwenn Tristant

Tristan Goulwenn

Summum Partners - Ultimate Triathlon

Testimonials from Finishers, coached by Cyril Blanchard

One in particular is imminent: the Summum project in the Chamonix Valley. This challenge was devised by Cyril Blanchard, the French Enduroman record holder. It involves swimming 3.8 km in Lake Coiselet, cycling 188 km with 3,200 m of elevation gain, then climbing Mont Blanc, first with a trail run to the Nid-d'Aigle refuge where a guide will be waiting at an altitude of 2,300 m, before tackling the final ascent to reach 4,810 m. "I already did it in 2024 in 25 hours and 30 minutes, and I'd like to shave off two or three hours," he admits. "I love climbing Mont Blanc, it's a real inner battle."

Tristan Goulwenn

Very happy (and proud!) to have completed SUMMUM An extreme triathlon inspired by Ironman, with the running stage consisting of a single climb up Mont Blanc ‍♂️ Swimming (4k) + cycling (180k 3200d+) + summit of Mont Blanc = 21 hours and 12 minutes of non-stop effort. Currently the best reference time. An extraordinary adventure, a total challenge. Thank you to Cyril for his support!!

Julien Deneyer

I crossed the finish line of this Ironman... at an altitude of 4,808 meters, after 24.5 hours of struggle. The Défi Summum was undoubtedly the toughest sporting challenge of my life. It was a chance to redeem myself... and the mountain, after my accident. A bike course worthy of a mountain stage of the Tour de France—let's be honest, the record was unattainable for me. Sudden changes in temperature: from the solar furnace of the valleys to the biting cold of the high mountains. The altitude slowing down every step, every breath. Fatigue that builds up after 228 km and 7,000 m of elevation gain. And yet... although the bike reminded me of my limits, it seems that I still managed to set the record for the final ascent to the summit of Mont Blanc. One thing is certain: you never reach the summit alone. So: Thank you to Cyril Blanchard, creator of the event, whose coaching and mental preparation enabled me to hold on after my fall into a crevasse.

Arnaud Naudan

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Summum the legend

The SUMMUM legend

It is said that the Summum was not born on a starting line, but in the silence of a room, where movement is impossible and where the mind refuses to give up. In 2016, after breaking the Enduroman world record, Cyril Blanchard thought he had tackled one of the toughest triathlons in the world. London–Paris, sea, road, night, doubt: a total crossing. But the real turning point came two years later.

On October 2, 2018, a road accident broke his neck. Immobility. Pain. And, in this forced void, a vision. An extreme triathlon that would surpass anything he had ever experienced. A challenge tailored for man, not for the clock. An adventure where nature, mental strength, and resilience shape the truth of an athlete.

Confined to bed, he imagines the architecture of an ultimate challenge: a wild swim, a bike ride sculpted by the mountains, a race that leads to the summit, both literally and figuratively. A triathlon of the impossible, where you cross more than just a mountain pass: you cross an inner threshold.

The Summum becomes more than just a project. It becomes a quest. A call to those seeking the toughest, most beautiful, and purest triathlon. A challenge for those capable of putting their mental strength at the center of their performance. Here, there are no crowds. No music. No fireworks. Just you, your team, the mountain, and the question that every athlete eventually asks themselves: how far am I willing to go?

At Summum, you don't come to beat a time. You come to beat yourself. To reach that point where your body hesitates, but your mind still says yes. To experience an adventure that goes beyond sport and becomes a story. And when you cross the finish line, you don't win a title.
You win an identity: you are Summum.

extreme-race-france-triathlon-marathon-athletic-challenge-mont-blanc-alps

The SUMMUM legacy

After the founding vision that emerged in 2018, the story could have ended there. But a legend only comes to life when it encounters the mountains. In early 2019, an encounter changed the course of events: Tony Sbalbi, a mountain guide with the Compagnie des Guides de Chamonix. He saw in me more than just a triathlete who had come a long way. He saw determination. And he gave me access to the terrain where the truths of endurance are forged: Mont Blanc.

This climb would become a revelation. High altitude doesn't lie: it forces you to be fair, precise, humble. That day, I understood that the Summum wasn't just an extreme triathlon dreamed up from a hospital bed. It was a path. A path that would lead to the summits.

The first messages began to arrive. Athletes seeking an extreme challenge, an extraordinary triathlon, a profound human adventure. They all asked: "How can I experience Summum Mont-Blanc?"

So we began. The first attempts. The first falls. Extreme fatigue. Acute mountain sickness. Breathing collapsing, the mind wavering, forced humility in the face of the slope.

But where there are failures, there are also victories. Some men have reached the summit. They understood that the Summum is not just "the toughest triathlon in the world." It is a mirror. An inner adventure revealed by the mountain.

extreme-race-france-triathlon-marathon-athletic-challenge-mont-blanc-alps

Then comes a key moment: the record is broken, and Bertrand Delapierre captures powerful, authentic images of man and mountain coming together. These videos capture the spirit of Summum: an extreme triathlon, a quest for self-discovery, a high-altitude odyssey.

And when legends take shape, they call for new horizons. The desire to discover other peaks arises almost naturally.
To understand how people experience their mountains. To imagine a global adventure, built with locals who are passionate about their territories. On the map, new names are emerging:

Mount Fuji, Japan's sacred volcano.
Kilimanjaro, the roof of Africa.
Mauna Kea, Hawaii's celestial mountain.

Places where effort becomes connection, where performance meets spirituality, where each summit tells a part of the world and a part of oneself. Because the story of Summum is not over. It moves forward, summit after summit. It is fueled by those who dare,
those who seek the ultimate challenge, an extreme triathlon, a transformative adventure.

The legend continues. And it is still being written.

extreme-race-france-triathlon-marathon-athletic-challenge-mont-blanc-alps

 at the end of the adventure!
Focus on yourself

Exceed your limits

Rediscover yourself at the end of the adventure!

extreme-race-france-triathlon-marathon-athletic-challenge-mont-blanc-alps

The SUMMUM identity

Those who come to Summum initially think they are looking for a challenge. But very quickly, they realize that the event is not just an extreme triathlon. It is a serum of truth.

Summum reveals.
It strips away the superfluous, removes the masks, and opens up a space where we can truly see ourselves. Here, reaching the summit doesn't just mean climbing Mont Blanc or the highest peak of your career: it means accessing a version of yourself that is still unknown. Reaching your Summum means discovering yourself for the first time.  It means crossing the invisible boundary between what you thought you were and what you are truly capable of becoming. It means accepting to stand before yourself, defenseless, without a role, without excuses, and embracing everything that makes you who you are: strength, fragility, lucidity, doubt, courage.

La Montagne: a truth that cannot be negotiated

But to access this truth, you must first prove yourself worthy. The Summum confronts you with an environment that you cannot control. The high mountains are a world that demands respect, attentiveness, and humility. Here, man imposes nothing. He adapts. That is why departure from the Summum is never guaranteed. Only two conditions can open the way to the summit:

• The guide's approval, based on high-mountain practices, who decides whether your climb can take place safely.

• Weather conditions, which uncompromisingly determine the physical integrity of the challengers.

Because wanting to reach the summit is not enough. You have to earn the mountain. Accept that it decides. Accept that failure is part of the deal.

More than just sport: an adventure that brings you back to basics

Summum is a symbolic journey. Each discipline tells a chapter of life.
Swimming: birth.
Everything begins in water. Like the world's first breath. A return to origins, to what creates, to what sustains. Summum swimming is not a struggle: it is a beginning.

Cycling: the journey.
Then comes cycling, long, demanding, sometimes solitary. It is your journey across the world, your way of moving forward, exploring, discovering new paths. The Summum journey is a metaphor for your life: its detours, its struggles, its essential passages.

Mont Blanc, Kilimanjaro, Fuji, Mauna Kea: elevation.
Finally, the climb to the summit. The point where everything comes together. The final effort, raw, pure, essential. You are not just climbing a mountain: you are rising toward what you could be. You are touching the peak of your existence. Your SUMMUM.

The Moral Contract

Participating in Summum is not just about signing up for an extreme triathlon. It is about accepting an inner commitment: being at peace with yourself and in tune with the laws of Nature. It is about embarking on an adventure where willpower counts, but where listening, humility, and awareness are the real keys to success.

Summum asks you a simple question: are you ready to meet in person?

Because those who pass this test do not obtain a title. They obtain a transformation. And a truth that no one can ever take away from them.

SUMMUM
Legend

4,808 meters above sea level, a giant that commands respect at first glance, a challenge where every step brings you a little closer to the sky.

SUMMUM
Héritage

3,800 meters to cover in rugged terrain, a test of total endurance where the mind takes over when the body tires.

SUMMUM
Identity

Information coming soon

An extreme race in France combining marathon, triathlon, and high-altitude mountain running

Summum Project is part of the world of extreme racing in France, combining elements of triathlon, endurance marathon, and mountain running. This extreme sporting challenge, held in the Alps and around Mont Blanc, is aimed at athletes seeking an extraordinary physical and mental challenge that goes far beyond traditional competition formats.

An extreme challenge unlike any other in the world of endurance racing



Unlike traditional extreme racing formats, Summum Project offers a holistic experience combining swimming, cycling, long-distance running, and high-altitude mountaineering.
Whereas some events focus on a single discipline, this challenge engages the body over the long term and places heavy demands on the management of effort, altitude, and mental strength.

Comparison with major extreme races in France

In France, several extreme races have become benchmarks in the world of
endurance and competitive sports:

  • UTMB® Mont-Blanc: ultra-trail around Mont Blanc
  • Marathon des Sables: extreme race in a desert environment
  • Ironman® France: long-distance triathlon
  • Diagonale des Fous: ultra-trail in extreme conditions
  • XTRI World Tour: international extreme triathlon

Summum Project stands out for its unique hybrid format, combining triathlon, marathon,
mountain running, and alpine challenges in a demanding and challenging natural setting. It is aimed at athletes
looking for a different kind of extreme race in France, where performance is part of a
true human adventure.

Mont Blanc and the Alps, the ultimate challenge terrain

The Summum Mont-Blanc embodies the essence of extreme high-altitude challenges. Combining
endurance, adaptation to the alpine environment, and mental commitment, this extreme race in
the Alps offers a unique alternative to traditional competitions. An experience designed for
athletes who want to take on an intense, authentic, and demanding challenge.

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