Viking Thor is the 15.0km trail race at Viking Challenge Trail 2026 (Stražilovo, Serbia). The race starts on October 24, 2026.
Run the downhill at race pace, but focus on the climb.
The course climbs 580m+. With 39m/km of climbing, this is a rolling, mostly runnable course. By gradient, 42% of the distance is uphill, 33% downhill and 25% flat. The longest climb runs 4.6km at an average 6.7% grade (305m of vertical). The longest descent runs 5.4km at an average 3.7% grade (203m of vertical). The steepest climb averages 13.1% over 0.5km. The steepest descent drops at 22.1% over 0.4km. Surface: 82% trail, 12% road, and 6% technical. Flat-equivalent effort: 19.8 FlatKM.
The highest summit on the course is Stolovi (500m), 10.2km from the start. Other named summits along the route: Debeli hrast (442m). The course also passes close to Astal (485m).
The course is runnable enough that trekking poles are not needed.
Quad damage risk is low (index 9 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 6°C to 16°C, with around 13°C at the highest point; the chance of precipitation is about 27%. Heavy rain of 10.0mm or more falls on about 5% of days around this date.
161 finishers completed the 2026 edition. Men's winner: Siniša Savić (Serbia) in 1:19:49. Women's winner: Anđela Rajić (Serbia) in 1:30:47.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Viking Thor.
Other distances of Viking Challenge Trail 2026Viking Ragnarok (24.0km)
