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Eiger Ultra Trail by UTMB
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E35 - North Face Trail

UTMB World Series
35.0km·2500m+
July 17, 07:35 AM
Burglauenen,
Switzerland
utmb·source

Race Pace Calculator · GPX Analyzer · Trail Finder

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Read

  • How to Taper for a Marathon, Half Marathon or Ultra
  • Types of Runs and What Each Workout Actually Trains
Hill Training for Trail Runners: Train the Descents

Full calendar: Switzerland

E35 - North Face Trail · Race profile

Distance
35.0km
Gain
2500m+
FlatKM
55.8
Max
2331m
Min
897m

About E35 - North Face Trail

E35 - North Face Trail is the 35.0km trail race at Eiger Ultra Trail by UTMB 2027 (Burglauenen, Switzerland). The race starts on July 17, 2027 at 07:35 AM. It starts in Burglauenen. The time limit is 9 h.

Race strategy

Hold a steady pace and save energy for every section.

  • 328m descent. Go easy, save your quads.
  • Steep 36% wall. Control your pace and stay focused.
  • The finish is runnable. Save your legs to run it all the way.
  • Control your HR on the first mountain, save your quads on the way down from it until 8.6km, then run your race pace.
  • Start · 0.0km–1.9km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.9km–18.9km · Climb of 747m, descent of 328m averaging 12%, climb of 939m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them. Running pays off here: run wherever you can. Hike the steepest pitches.
  • Work · 18.9km–30.3km · Climb of 403m, high point 2339m, descent of 1382m averaging 15%. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them. Hike the steepest pitches.
  • Home · 30.3km–35.3km · 5.0km of runnable trail. No heroics: settle back into your own effort and hold it to the line. Running pays off here: run wherever you can.

Course

The course climbs 2500m+. With 71m/km of climbing, the course is exceptionally steep, with long hiking-grade sections. By gradient, 41% of the distance is uphill, 50% downhill and 9% flat. The longest climb runs 6.0km at an average 12.5% grade (747m of vertical). The longest descent runs 9.1km at an average 15.3% grade (1382m of vertical). The steepest climb averages 42.1% over 0.2km. The steepest descent drops at 28.7% over 0.2km. Surface: 75% trail, 16% road, and 5% technical. Flat-equivalent effort: 55.8 FlatKM.

Summits

The course also passes close to Leiterhorn (1515m).

Poles

Trekking poles are worth taking: about 8.8km of the course favours them.

Quad damage

Quad damage risk is moderate (index 31 of 100), with 28% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.

  • Control your HR on the first mountain, save your quads on the way down from it until 8.6km, then run your race pace.
  • #1 · 6.0–8.6 km · 328 m D−, -12.4% · 26.7 km ahead → control
  • #2 · 21.2–30.3 km · 1382 m D−, -15.3% · 5.0 km ahead → your pace

Weather

On race day, start temperatures have historically ranged from 11°C to 20°C, with around 14°C at the highest point; the chance of precipitation is about 56%. Heavy rain of 10.0mm or more falls on about 10% of days around this date.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for E35 - North Face Trail.

Other distances of Eiger Ultra Trail by UTMB 2027E250 - UNESCO Trail (261km)·E101 Ultra Trail (101km)·E51 Panorama Trail (51.0km)·E16 - Pleasure Trail (16.0km)·Trail Surprise (15.0km)

Other editions of E35 - North Face Trail2026·2025

Official websiteeiger.utmb.world