Ultra Trail des Sources
Edition history
Spa, Wallonia, Belgium
09 Aug, 2025 (Sat)
Trail running
42 km, 80 km
About the event
The Ultra Trail des Sources (UTDS®) offers an unparalleled challenge for endurance athletes, set in the scenic Ardennes region of eastern Belgium. With its demanding 80 KM course and 2350 m+ elevation gain, this event connects the towns of Spa, Theux, Stoumont, and Trois-Ponts. Designed for those eager to push their limits, the race also welcomes teams of 2 to 4 runners for a relay experience. For runners seeking a solo endeavor, a 42 KM variant featuring a 1250 m+ elevation gain is available, covering the latter half of the ultra course. Meanwhile, a shorter 18 KM solo route with a 450 m D+ starts and finishes in Trois-Ponts, integrating with sections of the longer distances.
Immerse yourself in a journey through unspoiled landscapes and the untouched beauty of the Pays des Sources, a perfect setting for athletes drawn to the raw allure of nature.
Immerse yourself in a journey through unspoiled landscapes and the untouched beauty of the Pays des Sources, a perfect setting for athletes drawn to the raw allure of nature.
Races offered by this event
You have 22 weeks to prepare
42 km Solo
09 Aug, 2025 (Sat) - 07:00
Trail running
42 km
1250 m of elevation gain
Solo
On site
Trail
Hilly
Single loop
Timed
80 km Relais
09 Aug, 2025 (Sat) - 07:00
Trail running
80 km
2350 m of elevation gain
Relay (4)
On site
Trail
Hilly
Single loop
Timed
80 km Solo
09 Aug, 2025 (Sat) - 07:00
Trail running
80 km
2350 m of elevation gain
UTMB qualifier
Solo
On site
Trail
Hilly
Single loop
Timed
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Official links
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