Monte Rosa Walserwaeg by UTMB® 2026

The Monte Rosa Walserwaeg by UTMB® is a mountain trail running series held in Italy’s Aosta Valley. It offers four race distances: the Regina Margherita Trail (15 km), the Walserwaeg Trail (43 km), the Monte Rosa Trail (90 km), and the Sentiers des Valdôtains (120 km). This range provides options from a shorter trail race to a demanding alpine ultra. The courses traverse Aosta Valley trails through high mountain terrain and dense forests, with Monte Rosa serving as the series' primary landmark. As part of the UTMB World Series, it attracts runners seeking a UTMB-linked race in the Alps. Participants range from those new to mountain racing on the 15 km course to seasoned ultra runners tackling the 90 km and 120 km events.