Skip to content
kliva
UltraBelgiumLiège

Ultra-Trail des Sources 2026

22.08 – 23.08.2026Trois-Ponts (Belgium)
Build your race plan →

Pacing, fueling and crew sheet for the course you pick

RegisterOfficial siteWrong info?

4’38114’373 m D+ ft D+

160 km99.4 miUTDS - 160KMlongest of 7 courses

At a glance

Ultra-Trail des Sources 2026 took place from Saturday 22 to Sunday 23 August 2026 in Trois-Ponts (Liège, Belgium). 7 courses from 10 to 160 km.

Longest course: UTDS - 160KM, 160 km with 4’381 m D+ (27 m per km: hilly terrain). Terrain: 24% trail, 51% forest track and 24% road. Terrain data: © OpenStreetMap contributors.

The 2027 edition is expected on Saturday 28 August 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

An ultra-endurance race of 160 KM and 4630 m D+ using 99% of the original UTDS® route, organized by TheNextVenture in the Pays des Sources region of Belgium.
From the organiser

7 courses

  1. 10km6.2mi

    334 m D+1’096 ft D+

    avg 3%

    UTDS
    No index

  2. 19km11.8mi

    655 m D+2’149 ft D+

    avg 3%

    UTDS
    ITRA 1UTMB Index 20K

  3. 27km16.8mi

    785 m D+2’575 ft D+

    avg 3%

    UTDS
    ITRA 1UTMB Index 20K

  4. 42km26.1mi

    1’437 m D+4’715 ft D+

    avg 3%

    UTDS
    ITRA 2UTMB Index 50K

  5. 73km45.4mi

    2’279 m D+7’477 ft D+

    2’811 m D-9’222 ft D-

    avg 3%

    UTDS
    ITRA 3UTMB Index 50K
    GPX

  6. 100km62.1mi

    2’906 m D+9’534 ft D+

    avg 3%

    UTDS
    ITRA 4UTMB Index 100K

  7. 160km99.4mi

    4’381 m D+14’373 ft D+

    4’811 m D-15’784 ft D-

    avg 3%

    UTDS
    ITRA 5UTMB Index 100M
    GPX

Course analysis

160 km99.4 mi4’381 m D+14’373 ft D+

204effort kmⓘ160 km on the map · feels like 204 km99.4 mi on the map · feels like 204 km
D+
4’381 m14’373 ft
D−
4’811 m15’784 ft
Max alt.
697 m2’287 ft
Steepest
11%

Segments

Skip the map

Elevation profile: UTDS - 160KM

160 m – 697 m525 ft – 2’287 ft

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Ultra-Trail des Sources, in one roadbook.

Build your race plan →

Feels like these

Where to stay

Find a place to stay near Trois-Ponts for the race.

We may earn a commission if you book through this map, at no extra cost to you.

Spotted wrong info on this page? Tell us and we'll review it. Report it

← Back to calendar
Editions