La tremblaysienne - Le Tremblay-sur-Mauldre 2026

La Tremblaysienne is a small nature race in Le Tremblay-sur-Mauldre, a village in the Yvelines department west of Paris. Runners choose either 7 km or 12 km, and trail shoes are required, indicating this is a trail race, not a road race with a rural name. The route uses paths through fields and forest, with low elevation gain, so the challenge is more about footing and changing ground than long climbs. The event base is on rue du general de Gaulle in Le Tremblay-sur-Mauldre, and Marianne Loedel is listed as the contact for race questions.