Le Grand Prix de la Châtaigne 2026

Le Grand Prix de la Châtaigne takes place in late October in Lamastre, a town in France’s Ardèche region. The event offers short urban trail distances: a 5.3 km option, a 10.4 to 10.6 km route, and a 5.3 km walk. The races are held in semi-darkness through the town center, requiring participants to use headlamps. The program also features courses for children and juniors. The format is suitable for families and runners seeking a brief evening challenge instead of a lengthy mountain race. The urban trail covers approximately 280 meters of elevation gain, adding difficulty to the shorter distances. This event is part of the Challenge Yves Forot, organized by the Lamastre Town Hall’s sports department with support from local Crédit Agricole. A free 5.3 km hike benefits Octobre Rose, and the evening concludes with a complimentary tasting of roasted chestnuts, aligning with the race's theme.