Bison Ultra Trail 2023

Bison Ultra Trail in 2023, a running event organized in Supraśl (Poland) from 7 / 8 October. During the 5 races were held event. Course 105k (⨦ 104.5 km / + 950 m) in class RMT5 with average terrain slope 1% (G1). Course 70k (⨦ 70 km / + 700 m) in class RMT4 with average terrain slope 1% (G1). Course 50k (⨦ 52.5 km / + 600 m) in class RMT3 with average terrain slope 1% (G1). Course 35k (⨦ 37 km / + 600 m) in class RMT3 with average terrain slope 2% (G2). Course 20k (⨦ 18 km / + 250 m) in class RMT1 with average terrain slope 1% (G1).