Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, kilometre by kilometre.
Race-day light
For a 23:20 finish (an estimate) · starting 07:00 23 Aug · headlamp km 89–147. Dark means the sun below civil twilight.
Climbs
19 climbs · 8,834 m totalbiggest firstConditions typical race-day weather for 23 Aug at the start
Typical = the median of 2016–2025 for 23 Aug ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 3 years of this race
Past editions
Race-day highs at the start ran from 20° to 27°C, and 1 of 3 race days were wet.
| Year | Start °C | Rain | Wind |
|---|---|---|---|
| 2026 Aug 26 | 27°/11° | 0.9mm | 8km/h |
| 2025 Aug 29 | 20°/8° | 2.2mm | 10km/h |
| 2024 Aug 30 | 27°/11° | dry | 8km/h |
Next race day Mon, Aug 23, 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.
race-day weather from the Open-Meteo historical archive (ERA5) at the start line.
Reviews what runners who have been there say
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About this course
TDS — 2027 covers 148.2 km (92.1 mi) with 9,324 m (30,591 ft) of elevation gain. That is about 63 m per km of climbing, and 9,512 m of descent. The course tops out at 2,589 m and bottoms out at 721 m. The profile has 19 sustained climbs; the biggest is the climb from km 48.2, +1,547 m over 10.0 km at 15.4% on average (steepest stretch 46%). Race day is 23 August 2027, starting at 07:00; the sun rises at 06:42 and sets at 20:30. Typical race-day weather at the start: a high of 24°C and a low of 11°C, with a 24% 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
- Oct 31, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
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