Istria 100 by UTMB Marathon
- When
- Fri, Apr 10, 2026, 4:00 AM
- Where
- Buzet, HR
- Distances
- Half Marathon · Marathon · Ultra Marathon
- Terrain
- TRAIL
- Price
- 71–261 EUR
- Elevation gain
- 7140 m
- Typical weather
- Mild
- Organizer
- Ultra-Trail du Mont-Blanc (UTMB)
About
The Istria 100 by UTMB 168K takes place on Friday, 10 April 2026, starting from the ancient town of Labin atop Istria’s rugged interior and finishing in the coastal city of Umag, Croatia. This monumental ultratrail pushes runners across 168 kilometers of medieval hilltops, dense forests, and undulating terrain, with a staggering 7,140 meters of elevation gain, delivering an epic and unforgettable trail adventure.