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www.istria100.com

100 Miles of Istria

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Umag, Istarska županija, Croatia

calendar_today 10 Apr, 2026 – 12 Apr, 2026

directions_run Running

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100 Miles of Istria

About the Event

Experience the thrill of ISTRIA 100 by UTMB, one of the world’s most iconic trail races since 2013! With 5 distances—100 miles, 110k, 69k, 42k, and 21k—runners explore Istria’s rugged landscapes, from medieval towns and deep forests to canyons, streams, and breathtaking panoramas. Join over 3,000 participants worldwide for an unforgettable adventure full of technical challenges, natural beauty, and pure trail-running excitement.

Races Offered

168K

Apr 10, 2026

straighten

Distance — 168.5K

terrain

Type — Running

timer

17:00

110K

Apr 11, 2026

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Distance — 109.9K

terrain

Type — Running

timer

07:00

69K

Apr 11, 2026

straighten

Distance — 69K

terrain

Type — Running

timer

09:00

42K

Apr 11, 2026

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Distance — 42.2K

terrain

Type — Running

timer

12:00

21K

Apr 12, 2026

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Distance — 13.2K

terrain

Type — Running

timer

10:00

Weather History

These values represent the 3-year monthly averages for April in Umag.

thermostat Temperature
9.1° / 16.7°
wb_sunny Feels like
6.0° / 14.5°
light_mode Avg sunshine hours
10h 19m
water_drop Avg rainfall
3.2 mm
ac_unit Avg snowfall
—
air Avg wind speed
11.8 km/h (Light breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (3.5)
humidity_mid Humidity
73.2%
wb_twilight Sunrise
06:19
nightlight Sunset
19:51

About Umag

Learn more about the host city, Umag.

Scenic view of

Umag is a town in Istria on the Adriatic coast of Croatia.

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Hotels & Places to Stay

Things to Do Nearby

Tours and activities near Umag, powered by Viator.

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Video

Watch highlights and course previews from previous years.

Runner Reviews

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Nova Eroica Istria

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Istria 100 by UTMB®️ - 21K

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VRBANOVICA TRAIL 2026.

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