Istria 100 by UTMB® 2026

Between the Adriatic Sea, green hills, and medieval villages, Istria 100 by UTMB® invites you to discover one of the most fascinating regions of Croatia 🇭🇷. Organized in Istria, this peninsula at the crossroads of Latin, Slavic, and Mediterranean influences, the event is part of the official circuit UTMB World Series. The race takes place in the spring, an ideal time to explore the region when nature is in full bloom, and the trails are particularly pleasant to traverse 🌿. Several trail formats are offered, from the most accessible to the most challenging, attracting runners from all over the world for an experience that is both athletic and cultural.

The Istria 100 by UTMB® course crosses a wide variety of landscapes 🏞️. The trails meander through the Istrian hinterland, between forests, karst hills, dirt paths, and more technical passages, before reaching areas near the Adriatic coast. The routes connect several iconic starting towns, each with its own identity, ranging from bustling coastal resorts to historic perched villages. This variety gives the race a particular rhythm, alternating between rolling sections, more demanding climbs, and historically rich passages.

What makes Istria 100 by UTMB® truly unique is its dimension of cultural transcendence 🏰. Running in Istria means passing at the foot of medieval villages, skirting vineyards, and crossing landscapes shaped by centuries of local traditions. The event highlights the region's heritage as much as its trails, offering an experience where each section tells a different story.

The experience is also fully lived around the race 😊. The starting and finishing towns offer a warm atmosphere, supported by the inhabitants, volunteers, and a strong community of international runners. Istrian cuisine, influenced by the Mediterranean and Central Europe, is an integral part of the stay. Participating in Istria 100 by UTMB® means combining a sporting challenge, travel, and discovery in a setting that is both wild and welcoming.

A trail that connects land, sea, and history... it's up to you to be part of it 🎽.