La Gaz'Run - Gazeran 2027

La Gaz'Run is a village race day in Gazeran, Yvelines, offering several untimed options rather than a single competitive race. Adults can select a 21 km semi-marathon-style run or a 12 km nature run. Walkers have their own 12 km start, and children participate in 3 km and 1 km races later in the morning. Both main running routes begin and end in Gazeran. The 21 km course includes approximately 150 m of elevation gain, and the 12 km course has about 130 m. USEP Gazeran organizes the event to support cultural and sports projects for children at the village nursery and primary schools. The day also features an orienteering course, completed solo or in teams of up to five, where participants locate 9 markers throughout the village. Refreshments, food, and drinks at the finish line contribute to a local school-and-village gathering atmosphere rather than a timed competition.