Istria 100 by UTMB® 168K is a 168 km ultra trail of Istria 100 by UTMB 2026 in Labin, Croatia. The race starts on April 10, 2026 at 05:00 PM. It starts in Labin and finishes in Umag. The time limit is 45 h.
The course climbs 7140 m+. With 42 m/km of climbing, this is a rolling, mostly runnable course. By gradient, 32% of the distance is uphill, 37% downhill and 31% flat. The longest climb runs 6.7 km at an average 14.0% grade (936 m of vertical). The longest descent runs 4.7 km at 9.7% (457 m of vertical). The steepest climb averages 40.0% over 0.4 km. The steepest descent drops at 29.6% over 0.2 km. Surface: 52% trail, 25% smooth, 17% road, and 5% technical. Flat-equivalent effort: 225.9 FlatKM.
Poles bring little benefit here — only about 24.4 km of pole-friendly terrain.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Istria 100 by UTMB® 168K.
Other distances of Istria 100 by UTMB 2026Istria 100 by UTMB® 110K (111 km)·Istria 100 by UTMB® 69K (69.6 km)·Istria 100 by UTMB® 42K (42.5 km)·Istria 100 by UTMB® 21K (21.5 km)
Other editions of Istria 100 by UTMB® 168K2027·2025
Official websiteistria.utmb.world
