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Les 24h du Fer à Cheval 2027

Photo credits: Les 24h du Fer à Cheval
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🏙 Capitals / Major cities⛲️ Public park🗽 Exceptional monuments📰 Culture & Histoire♻️ Committed to the planet😲 Unusual Venue🥳 Festive🕒 Timed races👥 In Team🌙 Nocturnal🤪 Wacky
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The event in a few words

At first glance, the name of this race can be misleading: the 24h du Fer à Cheval (24 Hours of the Horseshoe) is not an equestrian event, but a trail race… 👟 a rather special one, at the gates of Paris!

In the paths of the Domaine de Saint-Cloud 🌲 with a panoramic view over Paris and all of Île-de-France, 24 hours of well-paced effort and fun await you: a challenge to take on solo or in a free relay, as a duo, as a trio or as a team of four. You're in luck: temperatures 🌡️ are still mild at this time of year in Paris. It's the perfect opportunity to put your summer training to the test and show off your runner's tan! ☀️

A mix of ultra-trail and backyard in the Paris region?! Yes, it's possible! Maybe not exactly the way you imagine it 🤔. Let us explain right away. Taking part in the 24h du Fer à Cheval means linking together as many laps as possible on an 800 m loop with 30 m of elevation gain … For one full day 🤓. Needless to say, the challenge will push you to give your best while having as much fun as possible! The course is super simple: you start on the Fer à Cheval avenue 🧲, climb up the hill to admire Paris, then head back down to your starting point 🏁. Simple, right? 🙃 We'll talk about it again after 24 hours of racing! 😅

The good news: your sense of direction won't be put to the test 😜. It's impossible to get lost on this course! You'll be able to fully enjoy the 460 hectares of one of the most beautiful gardens in the Paris region. This estate on the banks of the Seine was first and foremost a royal residence 👑 that belonged to, among others, Louis XIV, Henri IV and even Napoleon Bonaparte. A lot has happened since the 16th century, but 24-hour ultras? That's never been seen before! 😉

After your adventure, you'll have the chance to discover Paris in all its facets 📐. From the Eiffel Tower to Notre-Dame Cathedral ⛪️, including the Louvre Museum 🖼️, the Champs-Élysées for a bit of shopping 🛍️ or the banks of the Seine for a walk 🥾, a bike ride... Or even a ride on a bateau-mouche! 🚤 If you want to extend the countryside atmosphere at the gates of Paris, Versailles, Giverny (the Claude Monet garden) or the Chevreuse Valley with the Château de Rambouillet will welcome you with open arms. Charming and peaceful villages nearby, perfect for recovering and escaping the hustle and bustle of the city! 🏙️

We'll do everything we can to make sure the aid stations at the 24h du Fer à Cheval are top-notch and high quality. But let's be honest: we can't compete with French gastronomy! 😅 The best ally for recovering after the race is a good meal and something to treat yourself 🍽️. And you've come to the right place: in France 🇫🇷, Paris and gastronomy go hand in hand 👯. You're sure to find something to delight in after the effort, with enough variety to treat your taste buds after a very athletic day.

So, ready to take on the challenge and become a finisher of the 24h du Fer à Cheval? 🥇

4 reasons to join this race

A major challenge 😳
Do you think you have as much endurance as you have love for your favorite pasta dish? 🍝 The 24h du Fer à Cheval is THE perfect race to test your mind as much as your calves. Running the same 800 m and 40 m of elevation gain in a loop for a full day is the perfect recipe to become an ultra-trailer, Paris-region style! 🥷
In the heart of a historic estate 👑
The history of Saint-Cloud goes back to the 16th century, to the time of Catherine de Medici. Today, you can relax there, stroll around and… run! Back then people gardened and hunted there; now you get the chance to run races there. If that's not royal, what is! 🤓
A collective adventure 👥
Whether you run solo or in a relay of 2, 3 or 4, you will never be alone. The 24h du Fer à Cheval is a journey you take alongside 150 other runners with whom you can laugh and chat throughout the many loops you will complete together. You will come out of it tired, of course, but with new friends who share your passions 🫶.
Start the new season in style 📚
Held in early September, this event lets you assess both your physical and mental condition on a safe course, while testing your nutrition, sleep and gear. It is also excellent preparation if you are aiming for one of the big October trails, such as the Diagonale des Fous (Grand Raid de La Réunion), the Festival des Templiers, the Ultra Trail Atlas Toubkal or the Grand Raid des Cathares 💪.

A word from the organizer:

"The 24h du Fer à Cheval was born from a simple but ambitious idea:
to offer an accessible ultra in the Paris region, in a unique and
friendly setting. The idea emerged among the members of Xrun during their
training sessions on the site, who wondered how many times they could climb up and down the Fer à Cheval. After a first test lasting several hours, the experience turned into a more ambitious project, with a first edition initially reserved for club members.


Encouraged by other runners and clubs, we opened the concept to the public and organized the first edition. Although the edition planned for 2025 had to be canceled because of a strike in the Saint-Cloud park, we continued our efforts and are preparing what will be the 1st official edition, with 150 bibs.


Our ambition remains to create a unique experience combining self-improvement, team spirit and conviviality, where each runner can measure themselves against their own limits while sharing a collective adventure. From aid stations to entertainment, along with safe and attentive supervision, everything is designed so that this race remains a memorable experience, for participants and volunteers alike.


We can't wait to welcome you and share this exceptional adventure together, in the emblematic setting of the Domaine National de Saint-Cloud, to celebrate endurance, camaraderie and the spirit of the 24h du Fer à Cheval"

A distance for every taste

Frequently asked questions (FAQ)

You can pick up your bib on Saturday, September 12, 2026 (race day) between 8:30 am and 9:45 am at the Fer à Cheval location, Domaine de Saint-Cloud, 92210.

The races will start on Saturday, September 12, 2026 at 10 am at the Fer à Cheval location, Domaine de Saint-Cloud, 92210.

No, it is not required, but you will need to provide either a valid FFA license (Athlé Compétition, Athlé Entreprise, Athlé Running or Pass’ J’aime Courir), or a Parcours de Prévention Santé (PPS) certificate, obtained on pps.athle.fr, dated less than 3 months before the race date.

Yes, you must be at least 18 years old to take part in the race.

The bib has a single price of €80 per runner.

An aid station is available on every loop. We strongly recommend that you bring your own race nutrition that you have tested and approved.

Yes, runners who wish to do so have access to a dedicated covered area nearby (about 200 meters away), where they can settle in to sleep

Yes, wearing a headlamp is mandatory at night.

Your registration includes your race bib, whether you run solo or as part of a relay team. It gives you access to the base camp located in the start area, as well as a drop bag available throughout the event. An aid station area and a relaxation area will let you rest or meet up with your loved ones. Registration also includes safety and insurance for the entire duration of the race.

Focus

Les 24h du Fer à Cheval
Les 24h du Fer à Cheval
Les 24h du Fer à Cheval
Les 24h du Fer à Cheval
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