Rennes Marathon

Course & Elevation

The Marathon Vert de Rennes, officially Le Marathon Vert Rennes Groupe Interaction, is a two-loop city marathon held on a Sunday in mid-October, starting at 9:00 at the Mail François Mitterrand and finishing on the Esplanade Charles de Gaulle in Rennes. The first edition took place on 26 June 2011, when about 1,300 runners started, under the Association sportive Rennes Cap Malo. Until 2021 the race started at Cap Malo and crossed the communes north of Rennes. Since 2022 the course has been mainly inside the city of Rennes on a double loop that follows the Ille-et-Vilaine canal, with a passage through Cesson-Sévigné. The organisers describe a 100 percent urban course with a cumulative climb of 110 m and an FFA gold international label, and the race has hosted the Brittany marathon championship. The race has a green theme: runners can choose the Dossard Vert and give up the T-shirt and finisher medal, and the organisers plant one tree for every 2 km run, through the Yves Rocher Foundation. A 10 km and a women's race run on the Saturday evening before. The 2026 edition drew a full field and the marathon was sold out.