Istria 100 by UTMB® 69K is a 69.6 km ultra trail of Istria 100 by UTMB 2027 in Buzet, Croatia. The race starts on April 3, 2027 at 09:00 AM. It starts in Buzet and finishes in Umag. The time limit is 15 h.
The course climbs 2400 m+. With 34 m/km of climbing, this is a rolling, mostly runnable course. By gradient, 26% of the distance is uphill, 32% downhill and 42% flat. The longest climb runs 2.7 km at an average 14.0% grade (374 m of vertical). The longest descent runs 3.0 km at 10.9% (326 m of vertical). The steepest climb averages 21.9% over 1.0 km. The steepest descent drops at 27.0% over 0.2 km. Surface: 40% smooth, 32% trail, and 22% road. Flat-equivalent effort: 83.5 FlatKM.
Poles bring little benefit here — only about 10.1 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® 69K.
Other distances of Istria 100 by UTMB 2027Istria 100 by UTMB® 168K (168 km)·Istria 100 by UTMB® 110K (111 km)·Istria 100 by UTMB® 42K (42.0 km)·Istria 100 by UTMB® 21K (21.5 km)
Other editions of Istria 100 by UTMB® 69K2026·2025
Official websiteistria.utmb.world
