Iznik Ultramarathon

About the Event

Embark on a journey to the "Capital of Civilizations" for the 2026 İznik Ultra Marathon, Turkey's most expansive and prestigious trail running festival. Since its inception in 2011, this multi-day event has challenged athletes to circumnavigate the historic İznik Lake, a route that weaves through 2,500 years of history. Set within a geography currently on the UNESCO World Heritage Tentative List, the race attracts a global field of competitors who run through the heart of 21 traditional villages. Known for its technical terrain and the temperamental weather of early April, the İznik Ultra serves as a vital training ground for high-mountain summer races, demanding exceptional mental and physical grit.

The 2026 festival offers a diverse array of distances to accommodate every level of runner, from the legendary 160 km full loop to the community-focused City Run and Kids Run. Beyond the athletic competition, the event is a major socio-economic highlight for the Bursa region and maintains a strong commitment to social causes, including long-standing support for the Tohum Autism Foundation. Participants are supported by a professional infrastructure featuring chip timing, marked courses, and dedicated volunteer teams at aid stations. Whether you are navigating the ancient streets of the city or pushing through the rugged mountain trails, İznik provides a profound opportunity to test your limits in a landscape where antiquity meets nature.

Race Name	Distance	Difficulty Level	Primary Course Terrain
İznik Ultra	160 km	Extreme / Elite	Technical trails and lake perimeter
Orhangazi Ultra	90 km	High Endurance	Mountainous trails and dirt roads
Petzl Dikilitaş Ultra	75 km	Advanced Trail	Varied elevation and natural paths
Mountain Marathon	50 km	Challenging	Steep climbs and forest tracks
Derbent Trail	25 km	Intermediate	Hilly terrain and village paths
Çamdibi Semi-Trail	14 km	Novice / Entry	Gently rolling semi-trail

Event Pillar	Logistics & Participant Information
Primary Location	İznik (Bursa), Turkey
Kit Items	Bib, timing chip, finisher medal, and event shirt
Accreditation	UTMB Index qualifying courses
Community Impact	Support for Tohum Autism Foundation

water_drop 69.8%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 9.5° / 19.4°

wb_sunny 7.9° / 17.5°

air 6.5 km/h

water_drop 69.8%

About Iznik

Learn more about the host city, Iznik.

İznik is a town in the Eastern Marmara Region of Turkey, with a population of 22,507 in 2012. It stands at the east end of Lake İznik and is nowadays a quiet market town, but as ancient Nicaea was once a major cultural centre.