Trail half marathons in Northern Ireland
Find trail half marathons in Northern Ireland. Compare 4 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Rabbit Run, Norn Iron 100 and Mourne Way Marathon Events — The Other Way.
Narrow your search to Antrim, County Antrim and County Down, or browse the other locations below.
5 listed events · 4 with upcoming dates
Upcoming half marathons
4 matching events, earliest date first. Entry availability is shown separately.
Rabbit Run
NIRBallycastle, Antrim
Rabbit Run — 10K, Half, Marathon.
· Half marathon
Race details, entry and past editions →Entry information ↗Norn Iron 100
NIRBallintoy, Antrim
Norn Iron 100 — 106mi, 37mi, Half.
· Half marathon
Race details, entry and past editions →Entry information ↗Mourne Way Marathon Events — The Other Way
NIRNewcastle, County Down
Mourne Way Marathon Events — The Other Way in Newcastle.
· Half marathon
Race details, entry and past editions →Newcastle Way Marathon & Half Marathon
NIRNewcastle / Castlewellan, Down
Newcastle Way Marathon & Half Marathon — Half, Marathon.
· Half marathon · Status TBC
Race details, entry and past editions →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.
Giant's Causeway Coast Marathon 2026
NIRPortballintrae, County Antrim
Giant's Causeway Coast Marathon 2026 — an officially published half-marathon fixture at Causeway Coast.
Next date not listed
Race guide and recorded editions →Choosing a race in Northern Ireland
The unfiltered upcoming calendar includes events in Ballintoy (1), Ballycastle (1), Newcastle (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about half marathons in Northern Ireland
Which trail half marathons are coming up in Northern Ireland?
Rabbit Run is listed for 13 February 2027. Norn Iron 100 is listed for 29 May 2027. Mourne Way Marathon Events — The Other Way is listed for 26 June 2027. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for Northern 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.