About

Istria 100 by UTMB is a globally recognized trail running event that showcases the diverse landscapes of Istria across demanding ultra-distance courses. Runners take on technical terrain through mountains, forests, medieval hill towns, and striking coastal and inland scenery, with routes linking places such as Labin, Motovun, and Grožnjan before finishing in Umag. The atmosphere blends international prestige with the rugged character of the region, appealing to those seeking a true endurance test. Expect challenging climbs, rough trails, and a varied course that combines natural beauty with historic settings, creating an experience that is both scenic and physically demanding.