STHLM Trail Marathon

STHLM Trail 18K

18K·Stockholm, Sweden
foresttechnicaltrailloopbeginner friendly
Distance18K
Date18 Apr 2026
Difficulty1/5

About This Race

A virtual race completed anywhere over 18 days, with proceeds supporting epilepsy research through Hjärnfonden. Participants can complete the distance in one session or spread it across the event period, making trail running accessible while supporting meaningful research.

A virtual race completed anywhere over 18 days, with proceeds supporting epilepsy research through Hjärnfonden. Participants can complete the distance in one session or spread it across the event period, making trail running accessible while supporting meaningful research.

Location

Practical Info

Weather

Early spring conditions in Stockholm can vary from cool to mild, with potential for mixed weather as winter transitions to spring

Nearest Airport

ARN - Stockholm Arlanda Airport

Accommodation

Stockholm offers extensive accommodation options, with the race location at Flatenbadet accessible by public transport from the city center

Best For

trail beginnersultra runnerscompetitive runners

Notable Features

The event features a unique multi-lap format around Flatensjön lake with a challenging 90K option that organizers believe may be impossible to complete. The race includes a virtual component supporting epilepsy research and uses the Heyey app for tracking and community engagement.

Other Distances at This Event