Mieczysław Siębida currently has a ranking of Advanced Level A (week 23/2026), which is position TOP 10K among men in Poland. Mieczysław has run 26 scored trail races. The best scoring result achieved is several hundred RMT points on a course of ⨦ 43.5 km and + 1 500 m vertical during Górski Maraton Świętokrzyski in 2025. They recently participated in Ultramaraton Jaga-Kora 2026 and scored a lot of RMT points.