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40K Green Trail is a 40.0km trail race of Bjelasica Ultra Trail 2026 in Kolašin, Montenegro. The race starts on August 8, 2026 at 07:00 AM. It starts in Kolašin.
The course climbs 2300m+. With 58m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 29% of the distance is uphill, 38% downhill and 33% flat. The longest climb runs 3.3km at an average 16.8% grade (552m of vertical). The longest descent runs 3.3km at 12.7% (425m of vertical). The steepest climb averages 38.0% over 0.2km. The steepest descent drops at 22.6% over 0.8km. Surface: 75% trail, 18% smooth, and 8% road. Flat-equivalent effort: 55.9 FlatKM.
The highest summit on the course is Velika Miljevača (1930m), 9.2km from the start. Other named summits along the route: Bikovača (1908m) and Lica (1893m).
Poles bring little benefit here — only about 4.2km of pole-friendly terrain.
Quad damage risk is moderate (index 24 of 100), with 29% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.
Historically on race day, start temperatures range from 13°C to 22°C, around 15°C at the highest point; the chance of precipitation is about 34%. Heavy rain of 10.0mm or more falls on about 4% of days around this date.
67 finishers completed the 2026 edition. Men's winner: Aldin Rizvic (Bosnia and Herzegovina) in 3:44:30. Women's winner: Lidija Radulović (Serbia) in 4:48:08.
This page has the full results and splits, interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for 40K Green Trail.
Other distances of Bjelasica Ultra Trail 2026
Other editions of 40K Green Trail2025
Official websitebjelasicatrail.me