mozart Marathon is the 44.0km trail race at mozart 100 by UTMB 2026 (Fuschl am See, Austria). The race starts on May 23, 2026.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 1600m+. With 36m/km of climbing, this is a rolling, mostly runnable course. By gradient, 31% of the distance is uphill, 30% downhill and 40% flat. The longest climb runs 4.0km at an average 9.7% grade (383m of vertical). The longest descent runs 6.9km at an average 7.2% grade (500m of vertical). The steepest climb averages 34.5% over 0.2km. The steepest descent drops at 31.1% over 0.2km. Surface: 53% trail, 37% road, and 6% smooth. Flat-equivalent effort: 51.6 FlatKM.
The highest summit on the course is Klausberg (902m), 19.6km from the start.
Poles bring little benefit here: only about 1.9km of pole-friendly terrain.
Quad damage risk is low (index 19 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 8°C to 19°C, with around 15°C at the highest point; the chance of precipitation is about 56%. Heavy rain of 10.0mm or more falls on about 13% of days around this date.
748 finishers completed the 2026 edition. Men's winner: Tobias Geiser (Italy) in 3:18:42. Women's winner: Isabell Speer (Austria) in 3:38:17.
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 Marathon.
Other distances of mozart 100 by UTMB 2026mozart 100 (119km)·mozart Ultra (72.0km)·mozart Light (37.0km)·mozart Half Marathon (28.0km)·mozart Lake Trail (12.0km)
Other editions of mozart Marathon2025
Official websitemozart100.utmb.world