20 bornes d'Andresy 2026

The 20th Bornes d'Andrésy is a road race held in late November in Andrésy, located in the Yvelines department west of Paris. First run in 1982, the event is organized by the town in conjunction with the Office Municipal des Sports. It now features five distances: a half marathon, 10 km, 5 km, and 1 km and 2 km races for children and families. Parc des Cardinettes serves as the central point, hosting the race village, bag drop, and start area. The half marathon begins first, followed by the 10 km and 5 km races, structuring the morning around staggered starts rather than a single mass start. The event is designed for a wide range of participants, from local runners competing in the 5 km to seasoned road runners opting for the half marathon. Services include timing, refreshment stations, parking, restrooms, showers, and bag storage.