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Half marathonCompleted

Tout Rennes Court

October 4, 2026 · 9:00 AMRennes, Bretagne, France
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Race snapshot

Race Day

57°F

50–68°F · Feels mild

Total elevation gain

131ft

Relatively flat course · Net elevation change +0 ft

Participants

20K

Major marathon

Crowd Rating

4/ 10

Moderate spectator support

The Lowdown

Tout Rennes Court is Brittany's biggest free running festival, held every autumn in the streets of Rennes since 1982. Organized by a team of volunteers under title sponsor Harmonie Mutuelle, the event reached its 45th edition on October 4, 2026, drawing roughly 20,000 runners across its Sunday race program, plus a Saturday solidarity walk (La Colombia) and midweek school races -- about 32,000 participants across the whole weekend. The flagship distance is Le S'MI Ouest-France, a 21.1 km half marathon starting at 9:00 AM on Boulevard de la Liberté in front of Les Halles Centrales and finishing on the Esplanade Charles de Gaulle, threading the cobblestone streets of the historic center, half-timbered houses, the banks of the Ille and Vilaine rivers, and Thabor Park. The same day also includes the 10 km Ville de Rennes at noon, the 5 km Decathlon at 2:00 PM, three free youth races (Minimes, Benjamins, Poussins), and an FFA-licensed interclub team challenge for club athletes. True to its founding spirit, every race -- half marathon, 10K, 5K, and youth races alike -- remains entirely free to enter, with no registration fee at any distance. All three adult categories reached capacity well ahead of race day for 2026; runners can still trade bibs through Klikego's official bib exchange, and a handful of youth spots remain open.

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2026 · Half Marathon (13.1 miles / 21.1 km)

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