About This Race
The 168K represents the ultimate test of endurance across Istria's complete trail spectrum, demanding runners navigate the full technical arsenal of muddy valleys, stream crossings, and rocky coastal sections while maintaining forward progress through multiple day-night cycles. This distance requires seasoned ultrarunners with extensive experience in technical terrain and multi-loop racing, as the mental challenge of revisiting familiar sections becomes as demanding as the physical toll of 168 kilometers. The extended time cutoffs allow for strategic pacing through the most challenging terrain, but runners must possess the technical skills and mental fortitude to handle Istria's unforgiving landscape when fatigue sets in during the later stages.
Practical Info
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.
PUY - Pula Airport
- mobile phone with international roaming
- mandatory safety equipment per UTMB standards
Best For
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.