TRAIL’OWEEN 2026

On Sunday, November 1st, the scenic trails of Clayes-sous-Bois will come alive with runners and walkers as they gather at Parc Jean Carillon for an exhilarating day. The race kicks off with participants embarking on their respective courses: the 20 km trail run starts at 9:00 AM, followed by the 10 km run at 9:15 AM, and concluding with a marche nordique event beginning at 9:20 AM.
The route offers varied terrain that challenges runners to navigate through rolling hills and winding paths. The shorter 10-kilometer course includes an elevation gain of approximately 140 meters, while the longer trail run sees participants climbing over 280 meters throughout its length. This dynamic landscape provides ample opportunity for athletes to push their limits against a backdrop of natural beauty.
Competitors can expect a mix of forested trails and open meadows as they traverse through this picturesque setting. The event is part of the Trail des Yvelines challenge, adding an extra layer of prestige for those aiming to complete multiple races in the series.
Registration fees vary based on the distance chosen: $12 for the 10 km marche nordique, $13 for the 10-kilometer trail run, and $23 for the full 20 km course. Starting October 10th, prices increase to $13 for the walk event and $14 and $26 respectively for the shorter and longer running distances.
Participants will finish where they started at Parc Jean Carillon, allowing them to enjoy a sense of accomplishment as they cross the line in front of cheering spectators. This race promises not only an athletic challenge but also an immersive experience within one of France's most charming landscapes.
Join us for this memorable day filled with camaraderie and scenic beauty along the trails of Clayes-sous-Bois.