Ultra Trail Des Sources in 2026, a running event organized in Stavelot (Belgium) from 22 / 23 August. During the 5 races were held event. Course 45k (⨦ 43.5 km / + 1 450 m) in class RMT3 with average terrain slope 3% (G3). Course 75k (⨦ 73.5 km / + 2 350 m) in class RMT5 with average terrain slope 3% (G3). Course 10k (⨦ 10.5 km / + 350 m) in class RMT1 with average terrain slope 3% (G3). Course 20k (⨦ 19.5 km / + 600 m) in class RMT2 with average terrain slope 3% (G3). Course 25k (⨦ 26 km / + 750 m) in class RMT2 with average terrain slope 3% (G3).