Races
Istria
Istria peninsula. Učka above the Adriatic. Medieval hill towns and coastal trail in one hundred ten kilometers.
110 km+10,620 ft-10,855 ft24 hours20 ft to 3,222 fttech 6/10Checkpoints per race bookUčkaAdriaticUTMB IndexWSER qualifierAprilRunning Stones · 3 stones
Distance110 km
Gain+10,620 ft
Loss-10,855 ft
Altitude20 ft to 3,222 ft
Technicality6/10
Air45°F to 75°F
- Start254 ft
- High3,222 ft
- Low20 ft
- Finish20 ft
Geometryderived
Steepest drop1,424 ft-14.0% over 1.9 mi
Night miles23 misunset near 19:00 local
The cruxUčka mountain climb with Kvarner Gulf views (near mile 44)
Course DNA
The Course
Istria runs 110 km through Labin, Croatia. +10,620 ft gain and -10,855 ft loss. Surfaces skew 65% trail / 25% dirt road / 10% coastal rocky. Učka mountain climb with Kvarner Gulf views. High point near 3,222 ft. Low near 20 ft. April temps run 45°F to 75°F. The course rewards patience early and punishes rushed descents after mile 34.
The Work
Train for 10,620 feet of climbing across 110 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 24 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 6/10. Build a block that simulates the crux near mile 44.
Kit
April in Labin, Croatia: plan for 45°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 24 hours pushes past dark. Poles help on sustained climbs above mile 17. Vest capacity for 2 liters minimum. Shoes matched to 65% trail: lugs for mud, rock plate if the course turns technical after mile 34.
Race Day
Hold effort through mile 17. The field often splits on the first big climb after mile 34. Učka mountain climb with Kvarner Gulf views near mile 44 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 23 miles of fatigue management. Finish with reserve for the last descent.
Results
Istria finish lines.
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Sources (1)
- Qualifier: utmb_stones: https://utmb.world/utmb-world-series