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Istria 100 by UTMB
2 April 2027 · Umag, Croatia
ultramarathontrailutmbiconicmountainscenicspring
Distances
168K · 111K · 70K · 43K · 22K
Istria 100 by UTMB is Croatia's biggest trail race: it began in 2013 as a small event and now, as part of the UTMB World Series, draws more than 3,000 runners in early April. Distances are 168 km (from Labin), 110 km (from Buzet), 69 km (from Lake Butoniga), 42 km (from the foot of Motovun) and 21 km (from Grožnjan), and all finish on the Umag seafront. The courses cross the peninsula from the Učka mountains through rolling vineyards and forests to the sea, passing medieval hilltop towns. It is a classic spring season-opener with the buzz of an international festival. Istria is the land of truffles, olive oil and Malvazija wine, and Motovun, Grožnjan and Rovinj are well worth a visit without a race bib.
Course records
No course record data yet.
Weather in April
Typical weather in Umag on race day.
Starter pack 2026
- bib with timing chip
- finisher medal
- technical t-shirt
- goody bag
Standard starter pack.
Pacers & bib pickup
No pacers announced for this race.
Bib pickup
Umag expo
day before the race only
Bib pickup the day before.
Course map
Route not added yet
What’s nearby
Walking
Umag old town — The seaside core of the Istrian town.
30 minutes
Novigrad — A neighbouring fishing town.
2 hours
Poreč (Euphrasian Basilica) — The UNESCO basilica in Poreč.
Dinner before the race
Carb-loading recommendation coming later.
After the finish
Water, fruit and snacks at the finish.
↗ RegisterRegistration status to be confirmed — check the organiser’s site