France trail race

UTMB - Ultra-Trail du Mont-Blanc

Fri, August 28, 2026 · Chamonix, Haute-Savoie

The world's most iconic ultra trail: a full loop around Mont Blanc through France, Italy, and Switzerland. 171 km with 10,000 m of elevation gain.

5 weeks to go Good timing for course research, travel planning, terrain-matched long runs, and a structured build.

Race Overview

UTMB - Ultra-Trail du Mont-Blanc is a trail race held on Fri, August 28, 2026 in Chamonix, Haute-Savoie, France. TrailSplits currently includes 3 mapped courses for this event, with course maps, elevation profiles, weather context, and pacing tools for the uploaded GPX data.

5 weeks to go

Race route lab

Turn CCC 101K into a local rehearsal route

Open the official GPX in Planner, then choose a nearby start point to build a shorter loop that matches the course demand. This course averages about 59.8 m climb per km.

Race tools — CCC 101K

Fri, August 28, 2026

5 weeks to go

Selected distance

Free training plan — CCC 101K

Vert-focused blueprint with route-finder links into the Planner.

CCC 101K plan 98.8 km · 5912 m D+

3D Trail Preview

Course map — CCC 101K

Interactive MapLibre preview with the official GPX track.

Min Max

Elevation profile — CCC 101K

Based on the official GPX track.

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Historical Results (2025)

UTMB - Ultra-Trail du Mont-Blanc CCC 101K — 2025 edition. 1800 finishers.

🏆 Winner
9h 52m
📊 Median
18h 30m
50th percentile
👥 Finishers
1800
⚡ DNF Rate
22%
Moderate DNF rate
A target between 9h 52m and 18h 30m covers the full competitive range. Use the pacing calculator above to check your plan against the cutoffs.

Analyze this route in the Planner

Load the GPX directly into TrailSplits for surface analysis and terrain intel.

Official website: https://utmbmontblanc.com