# Is Istria 100 by UTMB 2027 registration open?

Yes. Istria 100 by UTMB 2027 is open for entry as of 2026-11-04; the status has read registration open since at least 2026-11-04; race day 2027-04-02.

- Organiser: UTMB Group / Istria 100
- Sport: ultra
- Where: Umag, HR
- Site: https://istria.utmb.world/
- Registration page: https://istria.utmb.world/
- Race day: 2027-04-02
- Registration status: registration open (checked 2026-11-04)
- Entry route: first-come

168K on 2nd April 2027; 110K, 69K, 42K on 3rd April; 21K on 4th April; all cards 'Registrations open'. utmb.world domain shared.

## Quick answers

**Is Istria 100 by UTMB 2027 registration open?**

Yes. Istria 100 by UTMB 2027 is open for entry as of 2026-11-04; the status has read registration open since at least 2026-11-04; race day 2027-04-02.

**How do you get a place in Istria 100 by UTMB 2027?**

Entries are first come, first served. 168K on 2nd April 2027; 110K, 69K, 42K on 3rd April; 21K on 4th April; all cards 'Registrations open'. utmb.world domain shared.

**How can I be alerted when Istria 100 by UTMB 2027 registration changes?**

Race Entry Watch reads Istria 100 by UTMB 2027's registration page every night, hourly in the week before a stated opening date and every ten minutes on the day itself, and records the sentences about entries that appear on it. A free weekly digest is on this page; the same-day email, the moment it opens, closes or sells out, is 4 USD a month or a 30-day pass for 5 USD at https://bikoosh.com/races/istria-100.

## Sources

- https://istria.utmb.world/ (read 2026-11-04)

## Changes

- 2026-11-04: record added

Canonical: https://bikoosh.com/races/is-istria-100-registration-open
Race Entry Watch is an independent, sourced tracker, not affiliated with any organiser. Every status is read on the event's own registration page on the date shown; dates and fees are quoted as the organiser states them; an entry is yours to make on the organiser's site.