Sörmlands 100 Trail Run

September 5th–7th 2025

Explore one of Sweden’s most biodiverse regions at this years Sörmlands 100 Trail Run – a race through some of the most scenic and challenging trails in Sweden.
All races are run on mix of forested single track, technical coastal trails, and fast-flowing sections, making for a race day memorable experience!
The event welcomes participants of all ages and abilities, distances including;

100 Miles Trail Ultra
105 km Trail Ultra
50 km Trail Ultra
22 km Trail Run
8 km Trail Run (new for 2025)
8 km Night Trail Run (new for 2025)
2 km Kids Trail Run

Sörmlands 100 Trail Run celebrates all things trail, including delicious local food, talks from athletes and adventurers and much more!

Join us for an unforgettable weekend!