ISKRA 11K is the 10.7km trail race at ISKRA Trail Košutnjak 2027 (Serbia). The race starts on March 21, 2027.
The course climbs 358m+. With 33m/km of climbing, this is a rolling, mostly runnable course. By gradient, 28% of the distance is uphill, 27% downhill and 44% flat. Surface: 85% trail, 8% smooth, and 7% road. Flat-equivalent effort: 11.8 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 3°C to 16°C, with around 10°C at the highest point; the chance of precipitation is about 26%. Heavy rain of 10.0mm or more falls on about 5% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for ISKRA 11K.
Other editions of ISKRA 11K2026
Official websiteiskratrail.com/kosutnjak-trail
