For its 6th edition, the Race Across Paris returns in 2027 with routes that will let you discover the region in a whole new way—from Paris to the Bay of Somme, passing through the forests of the Oise and the iconic castles of Île-de-France. Whether you choose the 1,000 km, 500 km, 300 km, or 200 km route, get ready for a unique adventure combining athletic challenges, diverse landscapes, and cultural discoveries.
Illustrations of the Race Across Paris routes. ⚠️ All our routes are still subject to change pending prefectural approvals and route inspections conducted up to a few weeks before the race. Please note that these routes may still change—the GPX files will be sent 30 days before the event.
1,000 km: Two loops for a grand-scale adventure
The 1,000-km route consists of two complementary loops, both starting and ending in Chantilly. These two routes will take you through a variety of landscapes, from the hustle and bustle of Paris to vast forested estates and the sea air of the English Channel.
Loop 1: From Chantilly to Paris, through forests and past castles
Right from the start, head toward Senlis before venturing into the region’s vast forests, particularly the Ermenonville Forest. This is your first taste of the natural landscapes that will accompany you along the first few kilometers.
You’ll then head west to reach Paris via Enghien-les-Bains. Riding through the capital will be one of the highlights of this loop: iconic cycling spots, historic monuments, and the unique atmosphere of the City of Light.
After Paris, head to Coulommiers. Here, a gourmet cheese break is a must! You’ll then continue on to Fontainebleau and the Gâtinais Regional Nature Park before arriving in Rambouillet and its castle.
You’ll enjoy more cultural highlights with a visit to a castle on the banks of the Seine, before heading back toward Chantilly through the Vexin region. There, you’ll discover the majestic Château de Chantilly—a must-see in the region—before arriving at the “ Basecamp ” for a well-deserved rest.
Leg 2: Heading for the Bay of Somme and the landscapes of Picardy
After the first loop, you’ll experience a whole new atmosphere. You’ll follow the Thérain River before exploring the Évoissons and their beautiful views of the Oise and Somme countryside.
Your route will then take you to the Baie de Somme, passing through the Vimeu region. And make no mistake: Picardy isn’t always a long, quiet river! The hilly terrain will remind your legs that ultra-distance running isn’t just about racking up the kilometers.
You’ll then head to Saint-Valery-sur-Somme, voted the second most beautiful village in France in 2020, before continuing on to Le Hourdel. With a little luck, you might spot the seals that inhabit the Bay of Somme.
You’ll then enjoy a breath of fresh sea air as you ride along the English Channel coast for a few kilometers, before heading back to Chantilly through the Pays de Bray.
A new culinary stop might just be waiting for you: Neufchâtel, the famous heart-shaped cheese from Normandy, will be the perfect companion for a well-deserved break.
On the way back, you’ll pass through Gerberoy, nicknamed the “village of a thousand rosebushes,” renowned for its flower-lined streets and authentic charm. Then, you’ll drive past the Château de Boran-sur-Oise before arriving in Chantilly and wrapping up this great adventure.
Illustrations of the Race Across Paris routes. ⚠️ All our routes are still subject to change pending prefectural approvals and route inspections conducted up to a few weeks before the race. Please note that these routes may still change—the GPX files will be sent 30 days before the event.
500 km: From Paris to Chantilly—A Journey Through Heritage, the Countryside, and the Great Outdoors
First 300-km loop: from Paris through the Vexin region to Chantilly
The 500-km course begins on the same route as the 1,000-km course, continuing into the heart of Paris around the 110-kilometer mark.
You’ll then head to the southwestern part of Paris to visit the magnificent Palace of Versailles. You’ll continue on to the French Vexin Regional Nature Park, an area with varied landscapes, including forests, countryside stretching as far as the eye can see, and small bakeries that are perfect for a tasty break.
You will then head east toward Chantilly. During the last few kilometers, you’ll pass by its racetrack and its magnificent castle before rejoining the Basecamp.
Second 200-km loop: forests, hills, and the cultural heritage of the Oise
You'll follow the Thérain River before reaching the Hez-Froidmont Forest. The first few kilometers will immerse you in a forest setting, perfect for a nice warm-up.
Next, you’ll pass through Clermont. This will be the perfect time to restock your supplies and recharge before tackling one of the sections well known to cyclists in the Isère region: the Lamécourt and Rémécourt climbs.
Watch out—your thighs might get a good workout! These hills will add a nice athletic challenge to the course and put your pacing to the test.
You will then continue on to Compiègne and its majestic castle, a testament to several centuries of royal and imperial history. The town and its surroundings offer a remarkable setting as you continue your journey.
Finally, you’ll pass through the vast forests of the Oise, where nature is reclaiming its place. Keep your eyes peeled: deer, does, and wild boars call this place home!
All you'll have to do is make your way to Chantilly and cross the finish line!
Illustrations of the Race Across Paris routes. ⚠️ All our routes are still subject to change pending prefectural approvals and route inspections conducted up to a few weeks before the race. Please note that these routes may still change—the GPX files will be sent 30 days before the event.
300 km: From Paris to Chantilly, Between Historic Sites and the Great Outdoors
After passing through Paris, you'll head southwest to the magnificent Palace of Versailles.
You’ll continue on your way to the French Vexin Regional Nature Park, where forests, vast countryside landscapes, and charming little villages follow one after another. It’s the perfect opportunity to enjoy a gourmet break at one of the bakeries along the way!
You’ll then head east toward Chantilly. During the final few kilometers, you’ll pass by its racetrack and its magnificent castle before reaching the finish line and fully savoring your adventure.
Illustrations of the Race Across Paris routes. ⚠️ All our routes are still subject to change pending prefectural approvals and route inspections conducted up to a few weeks before the race. Please note that these routes may still change—the GPX files will be sent 30 days before the event.
200 km by Night Go’Lum Experience: The Roads and Forests of the Oise
On this loop, you’ll first follow the Thérain River before reaching the Hez-Froidmont Forest, where you’ll walk through wooded landscapes.
Around kilometer 85, you’ll pass through Clermont. This is the perfect time to refuel before tackling a stretch well known to cyclists from the Isère region: the Lamécourt and Rémécourt climbs. Watch out—your thighs might start to burn!
You will then continue on to the majestic Château de Compiègne, whose history dates back to the Middle Ages and which has been transformed over the centuries, particularly under Napoleon III.
To wrap up your adventure, you’ll travel through the vast forests of the Oise region. Keep your eyes peeled: deer, does, and wild boars call this place home!
All that's left is to make your way to the finish line and celebrate your success the way it should be celebrated: with a nice cold beer and a delicious burger!
