Eco Trail du Massif des Brasses 2026

Eco Trail du Massif des Brasses is a trail running series held in Onnion, Haute-Savoie, France. The event provides four race distances: the 50k Trail du Massif des Brasses, the 20k La Pointe, the 10K La Boucle des Brasses, and the 10K P'tit Tour du Risse. These are designed for various abilities, from those seeking a brief mountain run to participants prepared for an extended trail effort. The races traverse natural trails within the Massif des Brasses. The descriptions highlight the open natural landscapes and the opportunity to challenge oneself. The event targets trail runners preferring a mountain environment over a road-race feel, and the shorter distances ensure the weekend is approachable for more than just seasoned ultra runners. The official race website is trail-massifdesbrasses74.com.