Mariusz Sielicki is not currently ranked in the RMT ranking. Mariusz has run 6 scored trail races. The best scoring result achieved is several hundred RMT points on a course of ⨦ 48 km and + 2 250 m vertical during Chojnik Karkonoski Festiwal Biegowy in 2019. They recently participated in Duląbka Trail - Bieg po Zdrowie 2026 and scored a lot of RMT points.