35km is the 35.0km trail race at Obala Ultra Trail 2026 (Izola, Slovenia). The race starts on November 7, 2026 at 11:00 AM. It starts and finishes in Izola. The time limit is 7 h 30 min.
Run hard on the first mountain, but save energy for the second.
The course climbs 1000m+. With 29m/km of climbing, this is a rolling, mostly runnable course. By gradient, 25% of the distance is uphill, 25% downhill and 51% flat. The longest climb runs 1.9km at an average 10.4% grade (194m of vertical). The longest descent runs 2.5km at an average 8.0% grade (200m of vertical). The steepest climb averages 22.5% over 0.6km. The steepest descent drops at 27.9% over 0.3km. Surface: 51% road, 34% smooth, and 13% trail. Flat-equivalent effort: 45.3 FlatKM.
The highest summit on the course is Ronek (116m), 33.3km from the start. The course also passes close to Trmun (207m) and Vrh (188m).
Poles bring little benefit here: only about 1.0km of pole-friendly terrain.
Quad damage risk is low (index 13 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 12°C to 18°C, with around 14°C at the highest point; the chance of precipitation is about 42%. Heavy rain of 10.0mm or more falls on about 17% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for 35km.
Other distances of Obala Ultra Trail 2026108km (108km)·64km (64.0km)·17km (17.0km)·11km (11.0km)
Other editions of 35km2025
Official websitewww.obalaultratrail.si
