ISTRIA 100 by UTMB

Feel the pulse of the earth beneath your feet as you journey through the heart of Croatia’s Istrian peninsula in the ISTRIA 100 by UTMB races.
April 10, 2025
Buzet
Number of finishers
2077
Distances:
21k, 42k, 69k, 110k, 100 miles
Elevation:
150m, 950m, 2200m, 3900m, 6600m

From rugged mountains to river paths

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Feel the pulse of the earth beneath your feet as you race through the heart of Croatia’s Istrian peninsula in the ISTRIA 100 by UTMB races.

Buzet, known as the “city of truffles”, provides a breathtaking backdrop of rolling hills, sprawling vineyards, and ancient medieval towns. 

The course unfolds across a mixture of terrains, from rugged mountain trails to serene river paths. Each kilometer reveals landmarks, such as the towering Motovun Forest and the gleaming Mirna River. As you navigate the course, you’ll be treated to an array of experiences – the scent of wildflowers, the hushed whispers of the forest, and the distant echo of the crashing Adriatic Sea.

Runners can choose from five different race distances: 21k, 42k, 69k, 110k, and 100 miles, each with its own unique set of challenges and surprises.

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