La Massingienne is a trail event held in Massingy, Haute-Savoie, close to the Parc Naturel Régional du Massif des Bauges. It takes place in early March and offers three race distances: 9 km, 18 km, and 34 km. All routes involve significant elevation gain; the 9 km has 330 meters of climbing, the 18 km has 660 meters, and the 34 km ascends approximately 1,370 meters.
The event also features walking routes of 8 km and 13 km, catering to those not solely focused on the longest race. This event has reached ten editions. The organizers characterize it as a small, local initiative focused on participants, volunteers, and partners. Funds generated by the event contribute to local causes annually, underscoring the day's community significance beyond the competition.