1–4 Apr 2027 · Umag, Croatia
Istria 100 by UTMB
About the event
Ultra-trail across the Istrian peninsula in Croatia, part of the UTMB World Series; the event is listed at Umag. The site says it started in 2013 with 237 competitors and now has over 3,000.
- When
- 1–4 Apr 2027
- Where
- Umag, Croatia
- Category
- Trail and mountain running
- Type
- Series stage
- Series
- UTMB World Series
- Open to
- Athletes and participants
- Held
- Every year
- Website
- istria.utmb.world ↗
- Source
- Official website · checked on 25/10/2026
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Dates and details are read from the official website of each event and may change: always check with the organiser before you travel.