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ChamonixFrance

UTMB

UTMB is a trail event in Chamonix, France, offering 171km. It is held in August.

Next edition
Fri, 27 Aug 2027In 11 months
Usually held
August
Where
Chamonix, FranceEurope
Surface
TrailOne distance
Longest distance
171km106.3 miles
Total climb
10000 mMountainous Climbing

Plan your race.

Show splits in

Put in the time you want to run and this works out the pace and the splits to carry.

A 171km at 5:00/km finishes in 14:15:00, for a sense of scale.

The climbing, measured per kilometer.

171kmMountainous Climbing

Total climb10000 m
Per kilometer58.5 m
SurfaceTrail

More than about 30 meters of climb per kilometer. Climbing and descending dominate, and on longer distances walking the steepest ground is often sensible.

Pacing. Pace per kilometer stops being useful. Work from effort and time on feet, practice descending in training, and plan fueling for a slower day.

This profile comes from one number: total elevation gain for the distance, divided by its kilometers to give an average rate of climb. That average sets the band. There is no point by point elevation data behind it, so it cannot show where the climbing sits or how steep any single hill gets.

From a date to a training block.

RunPT is a personal running coach for iPhone with focused plans for 5K, 10K, half marathon and marathon goals, so it does not build one for this distance. It can still guide a general running block for you, and the free pace and fueling tools below work at any distance.

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