Monterosa Walserwaeg by UTMB 82km (Monte Rosa Trail, MRT) is a UTMB World Series race held each July in the Aosta Valley of Italy. The point-to-point course starts in Pont-Saint-Martin — a Roman-founded town with an ancient bridge at the gateway to the Lys Valley — and finishes in Gressoney-Saint-Jean, a traditional Walser village at the foot of Monte Rosa. The route traverses the Lys Valley and Val d'Ayas, passing through the historic Castle of Graines and crossing the Rothorn Pass with views of the Matterhorn range before descending to the finish.
With 6,300m D+ over 82km (78.6 m/km), this ranks 19th of 390 European ultras for vertical density — comfortably in the top 5% most demanding courses in the database. Three UTMB Running Stones are awarded with direct-entry Finals Access in the 100K category. Race starts 06:00 on Friday 17 July 2026; maximum race time 25 hours. Entry €180 plus 8% administration fee; registration is open. First held in 2022. Nearest airports: Turin (TRN) 60 minutes from Pont-Saint-Martin, or Milan Malpensa (MXP) / Geneva (GVA).