The Best Trail Races in Ireland for 2026
Ireland has some of the most spectacular trail running terrain in Europe. From the rugged Wicklow Mountains to the wild Atlantic coastline of Donegal and Kerry, there's no shortage of stunning routes to race. Whether you're a seasoned ultra runner or lacing up for your first trail event, 2026 has something for everyone.
Here are the best trail races in Ireland you need to know about this year.
1. Waterville Trailrunning Festival — Co. Kerry
Set against the breathtaking backdrop of the Wild Atlantic Way, the Waterville Trailrunning Festival is one of the most scenic race weekends on the Irish calendar. Multiple distances along the rugged Kerry coastline — perfect for runners of all abilities who want to combine a race weekend with some of Ireland's finest scenery.
Why enter: The Wild Atlantic Way on foot. Need we say more?
2. IMRA Dargle Four Peaks — Co. Wicklow
Organised by the Irish Mountain Running Association (IMRA), the Dargle Four Peaks is a classic Wicklow mountain race that tests your legs and your navigation. Four distinct summits, sweeping views across the Garden of Ireland — a must-do for anyone serious about trail running in Leinster.
Why enter: Technical, challenging, and utterly beautiful. IMRA races are the gold standard of Irish mountain running.
3. Kerry Way Ultra
For those who want to go long, the Kerry Way Ultra is Ireland's premier ultra-distance trail race, following the famous Kerry Way walking route through dramatic mountain and coastal scenery. Taking place in September 2026.
Why enter: A genuine bucket-list Irish ultra — one of the most iconic endurance challenges on the island.
4. Seven Sisters Skyline — Co. Donegal
Donegal is Ireland's hidden gem for trail running, and the Seven Sisters Skyline showcases exactly why. Taking runners along the dramatic ridge of the Derryveagh Mountains in northwest Donegal — unmatched views and genuine mountain challenge.
Why enter: Donegal's mountains are criminally underrated. This race puts them firmly on the map.
5. Portumna Forest Marathon — Co. Galway
Not all trail races need to be mountain sufferfests. The Portumna Forest Marathon is a stunning run through ancient woodland on the shores of Lough Derg — fast, scenic, and accessible. A brilliant first trail marathon.
Why enter: Fast, forgiving trail course with incredible forest scenery. Perfect as a first trail marathon.
How to Find More Trail Races in Ireland
enduroeire lists over 600 running and endurance events across all 32 counties of Ireland — including trail races, ultras, mountain runs and more. Use our AI-powered race finder to discover events near you, filtered by distance, terrain and location.