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UTMB World Series168 kmTrail🇭🇷 Labin, Croatia

Istria 100 by UTMB 168K

Friday, 2 April 2027In 5 months · Start 17:00

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Istria 100 by UTMB: 4 distances

DistanceDateClimbHighest pointStartCut-offEntry
168 kmIstria 100 by UTMB 168K2 Apr 20276,800 m—17:0045 h$340
111 kmIstria 100 by UTMB 110K3 Apr 20274,200 m—07:0028 h$290
69.6 kmIstria 100 by UTMB 69K3 Apr 20272,400 m—09:0015 h$175
42 kmIstria 100 by UTMB 42K3 Apr 20271,000 m—12:008 h$160

Crosses the Istrian peninsula from Labin on the east coast over Mount Ucka and the hilltop towns of the interior to Umag on the Adriatic.

The Istria 100 by UTMB 168K is a trail 168 km ultra in Labin, Croatia, on Friday, 2 April 2027, starting at 17:00. The point to point course has 6,800 m of elevation gain (mountain), and the start temperature on race day has averaged 14°C in recent years. Entry is first come, first served, and the standard fee is about $340. The cut-off is 45 hours.

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Facts checked 10 Oct 2026 against istria.utmb.world, istria.utmb.world.

Elevation gain
6,800 m
Mountain · ↓ 7,090 m
Start altitude
295 m
above sea level, from terrain data
Temp at start
14°C
Peaks around 14°C
Entry fee
≈ $340
Open entry
Finishers
—
typical year
Course
Point to point
45h cut-off
Getting thereFly into PUY (Pula), about 27 km from the start

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Race weekends book up early. Searches are set for the race dates.

Istria 100 by UTMB 168K course map

A detailed route is not available for this race yet. The marker shows the race location.

Istria 100 by UTMB 168K elevation profile

Mountain: about 6,800 m of climbing and 7,090 m of descent. A detailed profile isn’t available for this race yet.

Istria 100 by UTMB 168K race-day weather

At start
14°C
Peak during race
14°C
Humidity
69%
Chance of rain
10%
Wind
10 km/h

2 April in past years

Historical averages for 2 April ±3 days, 2016–2025, from 17:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

Istria 100 by UTMB 168K finish times by age group

Top 10 overall, average of the last 5 editions
Men 20:45:38Women 26:30:56

No data yet. We’re collecting age-group results race by race.

Runner reviews

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

Istria 100 by UTMB 168K: questions and answers

When is the Istria 100 by UTMB 168K 2027?
The Istria 100 by UTMB 168K is on Friday, 2 April 2027, with the start at 17:00 local time.
How hilly is the Istria 100 by UTMB 168K?
The course has 6,800 m of climbing and 7,090 m of descent. We rate it mountain. It is a point to point course on trail.
What is the weather usually like at the Istria 100 by UTMB 168K?
Around the race date in 2016–2025, the temperature at the 17:00 start averaged 14°C, rising to about 14°C during the race, with 69% humidity. It rained on about 10% of those days.
How do you get a place in the Istria 100 by UTMB 168K?
Entry is first come, first served. The standard entry fee is about $340. Check the official site for the current registration dates.
What is the cut-off time for the Istria 100 by UTMB 168K?
Runners have 45 hours to finish.

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