La Tartencelloise - 10 km 2026

La Tartencelloise is a local race day around Margencel and Sciez in Haute-Savoie, France, featuring adult running races, Nordic walking, and children’s races. The adult long race is between 10 and 20 km, with the Grand Parcours listed at 15 km and 240 m of elevation gain; the shorter adult option covers 9 km with 160 m of climbing. This event is traditional and family-oriented, though the exact recurring month is not consistently listed. The routes primarily utilize single-track trails and accessible paths, deviating from a standard town-road circuit. Nordic walkers have a dedicated 9 km course, and children compete by age category over distances ranging from 0.9 km to 4.5 km. Every participant receives a slice of tart, a prize, and a meal, with one euro from each registration donated to support the fight against cystic fibrosis. The organization collaborates with local entities such as Association Reves d'Amazones, Foulees chablaisiennes, Foyer Rural, and La Tartencellois.