Trail running races in Ireland
Find trail running races in Ireland. Compare 8 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Upcoming running events include 10K races, 25K races, 50K races, half marathons and marathons.
Events to explore include World Half Marathon Festival, Donadea 50K and Annaloughan Loop 10K Trail Run.
Narrow your search to County Wicklow, Wicklow and County Kildare, or browse the other locations below.
12 listed events · 8 with upcoming dates
Upcoming trail running races
8 matching events, earliest date first. Entry availability is shown separately.
World Half Marathon Festival
IRLDonadea, Kildare
World Half Marathon Festival — Half, Marathon.
· Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Donadea 50K
IRLDonadea, County Kildare
Donadea 50K — 50K at Donadea Forest Park.
· 50K
Race details, entry and past editions →Entry information ↗Annaloughan Loop 10K Trail Run
IRLJenkinstown, Louth
Annaloughan Loop 10K Trail Run — 10K.
· 10K
Race details, entry and past editions →Entry information ↗Gaelforce 10K Bray
IRLBray, Wicklow
Gaelforce 10K Bray — 10K.
· 10K
Race details, entry and past editions →Entry information ↗Ultra Trail na mBan
IRLLaragh, Wicklow
Ultra Trail na mBan — 24K, 56K.
· 24K / 56K
Race details, entry and past editions →Entry information ↗Waterville Trail Running Festival
IRLWaterville, Kerry
Waterville Trail Running Festival — a verified UTMB Index race for the 2026 edition.
· 130K / 25K / 68K / 86K
Race details, entry and past editions →Entry information ↗Lough Cutra Castle Running Races
IRLGort, Galway
Lough Cutra Castle Running Races — 10K, Half, Marathon.
· 10K / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Bluestack Way Ultra
IRLDonegal / Letterbarrow, Donegal
Bluestack Way Ultra — 25K, 50K.
· 25K / 50K
Race details, entry and past editions →Entry information ↗Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
EcoTrail Wicklow 2026
IRLBray, County Wicklow
EcoTrail Wicklow 2026 — an officially published 30K race at Bray Seafront and the Wicklow Mountains.
Next date not listed
Race guide and recorded editions →Fauna Trail Running Festival 2026
IRLDonard, County Wicklow
Fauna Trail Running Festival 2026 — an officially published half-marathon fixture at West Wicklow mountains.
Next date not listed
Race guide and recorded editions →Gaelforce 10K Howth
IRLHowth, Dublin
Running event in Howth.
Next date not listed
Race guide and recorded editions →Monaghan Phoenix Marathon Festival 2026
IRLMonaghan, County Monaghan
Monaghan Phoenix Marathon Festival 2026 — an officially published half-marathon fixture at Rossmore Forest Park.
Next date not listed
Race guide and recorded editions →Choosing a race in Ireland
The unfiltered upcoming calendar includes events in Donadea (2), Bray (1), Donegal / Letterbarrow (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about trail running races in Ireland
Which trail running races are coming up in Ireland?
World Half Marathon Festival is listed for 9 January 2027. Donadea 50K is listed for 13 February 2027. Annaloughan Loop 10K Trail Run is listed for 20 February 2027. Check the race guide and organiser’s latest information before making plans.
What running distances are listed in Ireland?
Look for 10K races, 25K races, 50K races, half marathons and marathons in the upcoming listings. If an event offers several distances, check the individual race guide to choose the edition and distance you want to enter.
Where can I find race entry details for Ireland?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.