Wzgórzowa Trzynastka in 2023, a running event organized in Chrząszczyce (Poland) on 8 October. During the 2 races were held event. W13 - kilometry (⨦ 13 km / + 200 m) in class RMT1 with average terrain slope 2% (G2). W13 - mile (⨦ 21.5 km / + 300 m) in class RMT2 with average terrain slope 1% (G1).