Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, kilometre by kilometre.
Race-day light
For a 6:30 finish (an estimate) · starting 07:00 16 May. Dark means the sun below civil twilight.
Climbs
6 climbs · 1,331 m totalbiggest firstConditions typical race-day weather for 16 May at the start
Typical = the median of 2016–2025 for 16 May ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac the sky on race day
Next race day Sun, May 16, 2027 · 7:00 AM start
First and last light are civil twilight, the sun 6° below the horizon. The moon is lit as at midnight after the start; headlamp hours count a typical finish from the start while the sun is below civil twilight. Worked out for the start line.
Reviews what runners who have been there say
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About this course
Trail Alsace by UTMB Trail des Celtes 47K — 2027 covers 48.0 km (29.8 mi) with 1,613 m (5,292 ft) of elevation gain. That is about 34 m per km of climbing, and 1,641 m of descent. The course tops out at 779 m and bottoms out at 179 m. The profile has 6 sustained climbs; the biggest is the climb from km 23.5, +479 m over 6.1 km at 7.8% on average (steepest stretch 22%). Race day is 16 May 2027, starting at 07:00; the sun rises at 05:50 and sets at 21:05. Typical race-day weather at the start: a high of 18°C and a low of 9°C, with a 47% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
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Course history
- Nov 1, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- Run for Amma 50K — 2027May · 46 km · 36 m/kmSame distance · Similar climbing · Similar weather
- The Blue 2 Blue Challenge — 2026May · 53 km · 32 m/kmSame distance · Similar climbing · Similar weather
- Napa Wilderness Trail Runs 50K — 2027May · 52 km · 37 m/km · CASame distance · Same month · Similar climbing
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