Trail Running Calendar Northern Ireland 2026-2027

We have found 28 Trailruns in Northern Ireland. Check below where and when you can find the races.

Scrabo in County Down is a NIMRA short-championship mountain race organised by Ballydrain Harriers on 20 August 2026. The course is 6.30 km with 360 m climb; only major junctions are marked and GPS is not allowed.

A 28.24 km mountain race in County Down on 29 August 2026 with 1328 m of ascent around Tollymore Forest Park. The technical route follows tracks, the Mourne Wall and several summits; Level C mandatory kit is required.

September 2026

A mountain running event on Cuilcagh in County Cavan on 12 September 2026, covering 11.90 km with 870 m climb; only major junctions are marked, GPS is not allowed, and Level B mandatory kit is required.

The Mourne Mountain Marathon is Ireland's only two-day mountain navigation event. Teams of two compete across various distance categories, requiring self-sufficiency and overnight camping in the Mourne Mountains. It's a unique test of endur..

October 2026

A mountain running event in County Down on 3 October 2026 covering 11.90 km with 870 m climb, organised by Mourne Runners as part of the IMRA Ulster Championships and NIMRA League; GPS is not allowed and Level C kit is required.

SkyRun the Mournes features three demanding skyrunning races in the scenic Mourne mountains. Runners can choose from distances of 50 km, 35 km, or 20 km, each with significant elevation gain. The event is scheduled for October 10th, 2026.

Nav Challenge 4 in the Mourne Mountains takes place in County Dublin on Sunday 18 October 2026. The unmarked course is 99.00 km with 999 m of climb, GPS is not allowed and a Level B mandatory kit is required.

April 2027

A coastal 20 mile trail run from Portrush along the Causeway Coast Way, passing the Giant's Causeway, cliffs, beaches and castle ruins. The route sits within an Area of Outstanding Natural Beauty and features mixed terrain.

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