Mark Shannon currently has a ranking of Advanced Level A+ (week 23/2026), which is position TOP 100 among men in Ireland. Mark has run 9 scored trail races. The best scoring result achieved is several hundred RMT points on a course of ⨦ 50 km and + 1 850 m vertical during Wendover Woods Night in 2019. They recently participated in Skymarathon Sentiero 4 Luglio 2025 and scored a lot of RMT points.