Biegi Puszczy Bydgoskiej in 2018, a running event organized in Bydgoszcz (-) on 6 October. During the 3 races were held event. Ultra (⨦ 66 km / + 700 m) in class RMT4 with average terrain slope 1% (G1). Marathon (⨦ 43 km / + 500 m) in class RMT3 with average terrain slope 1% (G1). Half marathon (⨦ 22.5 km / + 200 m) in class RMT2 with average terrain slope 1% (G1).