[A CONFIRMER] Trail du Pays de Sully - 17 km 2026

The Trail du Pays de Sully begins at Ecole des Baronnes on Rue Vermeer in Rosny-sur-Seine, west of Paris, directing runners immediately onto forest paths. Held in September, the event features three trail races of 11 km, 19 km, and 31 km, alongside a 15 km walk. The courses involve significant elevation gain: approximately 300 m for the 11 km, 530 m for the 19 km, and 800 m for the 31 km. All routes remain on forest paths and trails, marking it as a true off-road event rather than a road race with woodland sections. The longer races are for adults, while the 11 km is accessible to participants aged 16 and up. The 19 km course includes one aid station, the 31 km course has two aid stations plus one at the finish, and participants must provide their own cup or container. Carrying water is advised, poles are permitted, and a cutoff is in place on the 31 km course at the second aid station (21 km). CSM Rosny-sur-Seine Athletisme organizes the race, offering bib pickup, bag check, and parking at the school or the train station located about 1 km away.