X-Trail Run 2027

X-Trail Run is a winter trail race held in the forest of Beaumont-sur-Oise, north of Paris, at the start of January. It offers runners two single-loop options: 15 km with 300 m of elevation gain, or 30 km with 800 m of elevation gain. The longer distance is the more popular choice, and both routes are designed for participants seeking genuine trail running over a flat road race. The course remains within forest terrain, emphasizing technical paths, climbs, and a more physically demanding day than the distance might imply. The 15 km route is suitable for runners wanting a shorter but still hilly trail, while the 30 km route presents the main challenge, with sufficient elevation to make pacing and footing crucial from the outset.