10km is the 10.2km trail race at Kočevsko Outdoor Festival 2027 (Slovenia). The race starts on May 29, 2027.
Short race: go all out.
The course climbs 223m+. With 22m/km of climbing, the course is predominantly runnable. By gradient, 17% of the distance is uphill, 19% downhill and 63% flat. The longest climb runs 5.1km at an average 3.0% grade (154m of vertical). The steepest climb averages 10.4% over 1.2km. Surface: 44% smooth, 35% trail, and 21% road. Flat-equivalent effort: 11.0 FlatKM.
The course is runnable enough that trekking poles are not needed.
There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.
On race day, start temperatures have historically ranged from 12°C to 22°C, with around 17°C at the highest point; the chance of precipitation is about 46%. Heavy rain of 10.0mm or more falls on about 10% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for 10km.
Other distances of Kočevsko Outdoor Festival 202761.5km (61.5km)·31.7km (31.7km)·14km (14.1km)·Vertical (2.6km)
Other editions of 10km2026·2025
Official websitekocevsko-outdoor.si/en