Chesnay Run 2026

The event listed as "Foulée Chesnaysienne" (also referenced as La foulée chesnaycourtoise) is a community trail and walking day held in Le Chesnay‑Rocquencourt, Yvelines, France. The next edition is scheduled for early October 2026, with a specific listing showing Sunday 4 October 2026 as the event date. The programme combines multiple short trail and walking distances in a largely forested/nature setting and includes separate children and junior parcours.

The day is presented as family‑friendly and accessible, featuring popular single‑loop 10 km options alongside shorter 3 km and children’s races and a dedicated Nordic walking category. Local organisers and municipal involvement are indicated on the public listing, and participants are advised to consult the event’s official course website for registration, detailed schedules and course maps. The event is promoted as a local outdoor trail experience close to Versailles and other regional attractions.