woman walking on green grass field

Istria 100 by UTMB 69K

69K·Istria
ultra100 mile100k50kmountainforesttechnicaltrailcoastalqualifier

Photo by Massimo Sartirana on Unsplash

Distance69K
Date10 Apr 2026

Registration is closed for Istria 100 by UTMB 69K

Get alerted if spots open up or when next year's registration goes live.

About This Race

The 69K represents the sweet spot for runners ready to tackle Istria's full technical repertoire without committing to the multi-day strategy required for longer distances. This distance demands solid ultrarunning experience as runners navigate the complete spectrum of Istrian terrain—from coastal sections to deep forest single track—while managing nutrition and pacing over what becomes a full day effort for most participants. Best suited for runners with several ultra finishes who want to test themselves against serious technical challenges while still maintaining a manageable timeframe for recovery.

Practical Info

Weather

Spring conditions with potential temperature swings from 0°C at night in mountain areas to over 25°C during the day. Sudden weather changes including rain, hail, and fog are possible.

Nearest Airport

PUY - Pula Airport

Required Gear
  • mobile phone with international roaming
  • mandatory safety equipment per UTMB standards

Best For

experienced trail runnersultrarunnersinternational travelers

Notable Features

Part of the prestigious UTMB World Series, this event uniquely combines challenging mountain terrain with coastal elements and cultural immersion through medieval Istrian towns. The courses feature technical single track, stream crossings, canyon passages, and elements of coasteering, making it one of the most diverse trail running experiences in Europe.