40K Green Trail is the 40.0km trail race at Bjelasica Ultra Trail 2026 (Kolašin, Montenegro). The race starts on August 8, 2026 at 07:00 AM. It starts and finishes in Kolašin. The time limit is 9 h.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 1700m+. With 43m/km of climbing, this is a rolling, mostly runnable course. By gradient, 30% of the distance is uphill, 37% downhill and 33% flat. The longest climb runs 9.1km at an average 10.5% grade (960m of vertical). The longest descent runs 4.1km at an average 10.6% grade (429m of vertical). The steepest climb averages 32.5% over 0.3km. 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 3.9km of pole-friendly terrain.
Quad damage risk is moderate (index 24 of 100), with 28% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.
On race day, start temperatures have historically ranged from 13°C to 22°C, with around 16°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, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for 40K Green Trail.
Other distances of Bjelasica Ultra Trail 202660K Red trail (60.0km)·23K Blue Trail (23.0km)·12K Orange Trail (12.0km)
Other editions of 40K Green Trail2025
Official websitebjelasicatrail.me