TRAIL RACE GUIDE · 2027
Istria 100 by UTMB
Istria 100 by UTMB
2027 race guide
Practical planning information for runners and supporters, including race distances, start locations, transport to Umag, accommodation and shared ride coordination.
Registrations open
Updated July 2026
ABOUT THE EVENT
Five races across the Istrian peninsula.
Istria 100 by UTMB is an international trail-running event with courses crossing the varied landscapes of Istria.
The event combines technical trail terrain, medieval towns, forests, rocky sections, coastal areas and inland Istrian landscapes.
All five races finish in Umag, while their starting points are located in Labin, Buzet, Motovun and Grožnjan.
2027 RACES
Choose your Istria 100 distance.
Race details may be adjusted by the organizer. Always verify current information before registering or travelling.
168K
168 km · 6,800 m+ · Start: Labin · 45-hour limit
110K
111 km · 4,200 m+ · Start: Buzet · 28-hour limit
69K
Approximately 69.6 km · 2,400 m+ · Start: Buzet ·
15-hour limit
42K
42 km · 1,000 m+ · Start: Motovun · 8-hour limit
21K
Approximately 21.5 km · 200 m+ · Start: Grožnjan ·
4-hour limit
START LOCATIONS
Different starts, one finish in Umag.
Labin
Starting location for the 168K race on the eastern side of the Istrian peninsula.
Buzet
Starting location for the 110K and 69K races in inland Istria.
Motovun
Starting location for the 42K race below the medieval hilltop town.
Grožnjan
Starting location for the 21K race in north-western Istria.
EVENT SCHEDULE
Planned 2027 race starts.
Istria 168K
Start from Labin.
Istria 110K
Start from Buzet.
Istria 69K
Start from Buzet.
Istria 42K
Start from Motovun.
Istria 21K
Start from Grožnjan.
GETTING TO UMAG
Plan your arrival and race-start transport.
Umag is the main event centre and finish location. The organizer also provides race-start transportation that must be booked according to official instructions.
DRIVING DISTANCES
Approximate road distances to Umag.
WHERE TO STAY
Accommodation in and around Umag.
Staying close to Umag can simplify bib collection, finish logistics and access to official buses travelling to the separate race starts.
- Check the distance to the official sports hall
- Confirm access to race-start transportation
- Plan late finish and recovery logistics
- Check storage space for trail equipment
- Reserve early for race weekend
SHARED RIDES
Travelling to Istria 100?
Use Lumopa to create or discover race and shared-ride invites for Istria 100 by UTMB.
- Offer available seats to Umag
- Look for transport from Croatia or nearby countries
- Coordinate luggage and trail-running equipment
- Agree on departure and arrival times
- Keep communication connected to the invite
GET LUMOPA
Find your pace. Find your people.
Download Lumopa and search for race and shared-ride invites created by active people travelling to Istria.
COMMON QUESTIONS
Istria 100 by UTMB 2027 FAQ.
When is Istria 100 by UTMB 2027?
The event is scheduled from 1 to 4 April 2027, with race starts taking place from 2 to 4 April.
Which race distances are available?
The event includes 168K, 110K, 69K, 42K and 21K races.
Where do the races finish?
The race centre and finish are located in Umag, Croatia.
Where do the races start?
Depending on the distance, races start in Labin, Buzet, Motovun or Grožnjan.
Can I organize a shared ride to Istria 100?
Yes. Lumopa users can create or discover shared-ride invites and coordinate practical travel details.
Is Lumopa affiliated with Istria 100 or UTMB?
No. Lumopa is an independent community platform and is not affiliated with, endorsed by or operated by the event organizer or UTMB Group.
Important information
This independent guide is intended for general planning purposes. Race dates, routes, schedules, registration conditions, transport and accommodation arrangements may change.
Always verify the latest information on the official Istria 100 by UTMB website before making race, travel or accommodation plans.
Istria 100 by UTMB and associated names are the property of their respective owners. Lumopa is not affiliated with or endorsed by the event organizer.
Official sources: Event website · Race details · Travel information