La Course Royale - 21.1 km 2026

La Course Royale is a local race day in Fontenay-le-Fleury, in the Yvelines department west of Paris, with the half marathon as its longest running event. The 21.1 km race and the 10 km race both start at 10:00, while the walking events go off earlier at 09:45. The programme is built for more than one type of participant: runners can choose the half marathon or 10 km, walkers have a 10 km hike, and the listing also includes a very short Nordic walking event marked as 9 m. The race is organized by the Mairie de Fontenay-le-Fleury, and a previous edition recorded 1,172 participants, so it is a town-run event with a solid local turnout rather than a tiny club outing.