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Istria 110K

Basic Listing
  1. UTMB
  2. 2026 Edition
UTMB World Series3 Stones

Istrian inland trails and technical karst terrain, from Buzet to the Adriatic coast

Directions
Find a Qualifier
Calculate UTMB Lottery Odds3 Running Stones
This event took place on April 11, 2026

Nearby races

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139 mi away
All trail races in Croatia→
April 11, 2026
Saturday 7:00am GMT+2 start
Labin
Croatia
110.47 km
Point to Point Course
4,587 m
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
Qualifier
Race requires a qualifier
Very Challenging
Experienced ultrarunners
Fills Up Fast
High demand — register as soon as possible
Links
WebsiteInstagramFacebookYouTube
2013
Established

What Makes It Great

The 110K starts in Buzet and spends its opening 20 kilometers on classic Istrian inland trails before merging with the 168K route. It's a deceptively demanding course — the rocky, technical terrain leading toward Buzet keeps the effort high despite more modest elevation numbers, and the coastal section near Umag brings welcome relief before the seafront finish.

Difficulty

Advanced
7/10

Experienced ultrarunners

Technical Terrain
Steep Climbing
Night Running
Variable Weather

Istria 110K

Labin, CroatiaApril 11, 2026

April 11, 2026
Course map for Istria 110K
DistDistance110.47 km
GainElevation Gain4,587 m
LimitCutoff28 h
Steep ClimbingNight RunningVariable Weather

Entry Timeline

Race DayApril 11, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

Requiredfor race entry

Must meet custom qualifier requirements within the qualification window

Requires UTMB Running Stones 3.

Service Requirement

This race does not have a service requirement for entry.
110.5 km
Distance
Point to Point
Route
28h
Cutoff Time
315 m
Average Elevation
4,587 m
Total Ascent
4,658 m
Total Descent
1,005 m
High Point
4 m
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationkmElevation
Buzet
Start
0.077 m
Prapoće
Aid Station
14.8497 m
Trstenik
Aid Station
26.4685 m
Buzet
Aid Station
41.874 m
Butoniga
Aid Station
58.438 m
Livade
Aid Station
73.912 m
Grožnjan
Aid Station
89.6275 m
Buje
Aid Station
96.5147 m
Umag
Finish
111.31 m

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

No Dogs Allowed
No on-site camping available

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

  • Crew may access designated 'assistance permitted' checkpoints only. Minor care permitted while runner remains seated.

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Videos & Race Reports

No videos or race reports available for this event yet.

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