Skip to content
Endurance AnalyticsEndurance Analytics
  • Calendar
  • Trail Finder
  • Geo Quiz
  • Challenges
  • Blog
Trail runningBiathlonSkiingSkimoOlympicsCalendarTrail FinderGPX AnalyzerRace Pace CalculatorChallengesComparePricingConnect AIBlog

Know the course before you run it

© 2026 Endurance Analytics. All rights reserved.

Privacy policyTerms of serviceRefundsContact
  1. Home
  3. Trail running
  5. 2025
  7. mozart 100 by UTMB
mozart 100 by UTMB
119km11945km4537km37

mozart Light

UTMB World Series
37.0km
May 23
Fuschl am See,
Austria
utmb·source

Race Pace Calculator · GPX Analyzer · Trail Finder

Other races: Austria

Read

  • Types of Runs and What Each Workout Actually Trains
  • Hill Training for Trail Runners: Train the Descents
  • Downhill Running Muscle Damage: Why Descents Wreck Quads

Full calendar: Austria

mozart Light · Race profile

Distance
37.0km
FlatKM
49.5
Max
1098m
Min
417m

About mozart Light

mozart Light is the 37.0km trail race at mozart 100 by UTMB 2025 (Fuschl am See, Austria). The race starts on May 23, 2025.

Race strategy

Run hard on the first mountain, but save energy for the second.

  • Start easy and control your HR up to 23.7km.
  • Steep 27% wall. Control your pace and stay focused.
  • Hold your race pace up to 32.4km, but stay in control.
  • Ease into the early runnable section, then run your race pace, and go all out on the final descent from 34.4km.
  • Start · 0.0km–2.0km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 2.0km–23.7km · Plus 1 more climb. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. Running pays off here: run wherever you can.
  • Work · 23.7km–32.4km · Descent of 767m averaging 9%, high point 1098m. This is where the race is built: steady, solid effort. Hike the steepest pitches.
  • Fade · 32.4km–34.4km · Plus 1 more climb. Your energy fades, and that's normal: hold a steady effort and stop counting the miles. Climb by heart rate or breathing, not pace. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
  • Home · 34.4km–36.3km · Descent of 219m averaging 11%. No heroics: settle back into your own effort and hold it to the line.

Course

By gradient, 33% of the distance is uphill, 39% downhill and 28% flat. The longest climb runs 3.1km at an average 12.0% grade (370m of vertical). The longest descent runs 8.7km at an average 8.8% grade (767m of vertical). The steepest climb averages 31.6% over 0.3km. The steepest descent drops at 32.0% over 0.4km. Surface: 57% trail, 30% road, and 10% smooth. Flat-equivalent effort: 49.5 FlatKM.

Summits

The highest summit on the course is Kapuzinerberg (640m), 34.3km from the start.

Poles

Poles bring little benefit here: only about 3.6km of pole-friendly terrain.

Quad damage

Quad damage risk is moderate (index 22 of 100), with 34% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.

  • Ease into the early runnable section, then run your race pace, and go all out on the final descent from 34.4km.
  • 23.7–32.4 km · 767 m D−, -8.8% · 3.9 km ahead → your pace

Weather

On race day, start temperatures have historically ranged from 9°C to 19°C, with around 15°C at the highest point; the chance of precipitation is about 56%.

Results

340 finishers completed the 2025 edition. Men's winner: Jan Kundörfer (Germany) in 3:09:48. Women's winner: Maria Elisa Legelli (Germany) in 3:28:27.

This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for mozart Light.

Other distances of mozart 100 by UTMB 2025mozart 100 (119km)·mozart Marathon (45.0km)

Other editions of mozart Light2026

Official websitemozart100.utmb.world