A bold 100-mile loop around Monte Rosa — wilder and more technical than UTMB
Other trail races within 87 miles
A demanding 170 km single-stage ultramarathon encircling the Monte Rosa massif across the Swiss-Italian border. The route follows the classic Tour de Monte Rosa footpath anticlockwise from Grächen through Zermatt, over the Theodul Glacier into Italy, continuing through Gressoney, Alagna, Macugnaga, and over the Monte Moro Pass back into Switzerland via Saas Fee. Runners navigate the flanks of 29 four-thousand-meter summits, cross the Charles Kuonen Suspension Bridge, and spend multiple nights on the trail. With a 60-hour time limit and a finish rate around 67%, it is considered more technically demanding than UTMB and takes roughly 20% longer to complete. ITRA 6-point race.
Recommended for seasoned ultrarunners
Grächen, VS, SwitzerlandSeptember 03, 2026

Must complete an approved qualifier event within the qualification window
Find a qualifying raceMust have completed a 100-mile race in mountain terrain from 1 January 2019 onwards. Examples listed by the organization include: UTMB, Hardrock 100, Tor des Géants, Ronda dels Cims, Diagonale des Fous, X-Alpine 111, Scenic Trail 113, Transgrancanaria 128km. Applicants without a qualifying finish may [email protected] to make their case.

| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 1,619 m |
Finish Finish | 163.1 | 1,620 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Multiple high passes above 3000m including Theodulpass (3295m) and Monte Moro Pass (2789m). Glacier crossing requires microspikes.
Night temperatures can drop below freezing above 2000m. Race visits elevations over 3000m in multiple sections.
Rapid weather changes between adjacent valleys are common. Alpine conditions in early September can include sudden snow, rain, and wind at altitude.
No required gear specified
No recommended gear specified
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