The Boulogne-Billancourt Half Marathon returns on 16 November 2025 with its ideal route for beating your personal best or enjoying an unforgettable first 21 km.
On 16 November 2025, enjoy the unique experience of the Boulogne-Billancourt Half Marathon, one of France's most popular running events. With its fast route along the Seine - then through the heart of the Bois de Boulogne - and a festive atmosphere from start to finish in front of the Hôtel de Ville - a reinforced concrete building in the Art Deco style, which is very common in Boulogne-Billancourt - this race attracts more than 12,000 runners every year. Whether you're aiming for a fast time or your first half marathon, this flat and dynamic course promises performance and thrills in the heart of the Parisian autumn.