Ever wondered what it would be like to take on one of the BIGGEST races out there? Our full iron distance, The Bastion, is the ultimate challenge for 2027. Tackle a 3.8K swim, 180.2K cycle and finish off with a 42.2K run. All around a French Château.
The BIG one. The ULTIMATE challenge. The 13th June. Only at Chantilly.
If you’ve ever wanted to tackle a 3.8k swim, 180.2k cycle, and a marathon, here is your sign.
Our famous full iron distance which has been designed to offer the ultimate physical challenge to athletes but in the most beautiful setting. Earn bragging rights to arguably one of the toughest races in the world.
Start your race with a swim in the exclusive lake, cycle through the picturesque surroundings of Chantilly, and finish with a run through the stunning grounds of the Château de Chantilly.
As a Bastion racer, you also get your own dedicated briefing, as well as a Bastion background filled with goodies from our partners to get you ready for your race.
A full iron distance at a luxury venue, without a heavy price tag.
Read our full guide to get to know The Bastion and what to expect.
Our 2027 The Bastion guide will be added here ASAP.
The majestic Château de Chantilly, Hauts-de-France region, will host the second event of our 2027 Season. Throughout the weekend, athletes and spectators will be able to enjoy the castle grounds and a festival village atmosphere featuring live music, shopping, food and drink, children’s entertainment, yoga and more.
Just 30 minutes away from Paris, it’s the perfect venue for your challenge.
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