Trail Running Calendar Ireland 2026-2027

A mountain running event on Tory Hill in County Kilkenny offering a fully marked **8 km** course (about 400 m climb) and a **5 km** short course. Mixed trail terrain with two summit visits and mandatory showerproof jacket kit.

A continuous 170 km ultramarathon from Dublin to Belfast on 9 May 2026 with a 30 hours limit, compulsory safety kit, GPX navigation and trackers used to monitor progress and enforce three cutoffs.

A mountain running event in Kilcash, County Tipperary on 10 May 2026 offering a 9.97 km course with 580 m ascent and a 4.81 km short course. Level B kit is required and only major junctions are marked.

A 5 km trail race in Bweeng on 10 May 2026 that raises funds to complete a 200 m track; the event attracts runners from across Ireland and has received county and national awards.

An uphill mountain race from Bay Lough to the summit of Knockmealdown on 13 May 2026, covering about 4.74 km with 535 m of climb. The route is unmarked, GPS devices are not allowed, and Level B mandatory kit is required.

Brockagh is an IMRA mountain race in County Wicklow with a 9.90 km long route and a 4.80 km short junior route. The course is fully marked, GPS is allowed, and Level B mandatory kit is required.

A 161 km, 5,500 m ascent ultramarathon on the Beara Way with a 37-hour time limit, start and finish in Castletownbere. Fully marked route with mandatory Level C kit, four drop-bag points and staffed aid stations.

A team relay along the Wicklow Way covering 104 km on 16 May 2026 with eight stages and teams of two to eight runners. The event follows strict kit and route rules and raises funds for IMRA junior international teams.

A volunteer-run IMRA off-road race near Ballisodare, Co. Sligo, with a marked long course of about 7.9–8.0 km and a ~6 km short/junior option, GPS allowed and a basic waterproof jacket required.

A 70 km mountain ultra around Castletownbere on the Beara Way with significant ascent, manned aid stations, and Level C mandatory kit. The route passes Eyeries and Allihies and allows one drop bag per runner.

Mám Éan is an IMRA mountain race near Loigín car park in Derryvealawauma, County Galway on Saturday 16 May 2026. The main route is an out and back of 8.3 km with 350 m climb, plus a 3.7 km junior course.

A 23.5 km mountain half marathon in County Cork with about 1100 m ascent. The fully marked 2026 route follows the Beara Way, summits Mish Kish and Knockoura, and returns to Castletownbere.

Trail race in Ardgillan Demesne, County Dublin with a 9.5 km main course and a 5 km junior course. The fully marked route includes rolling hills, a beach section and coastal views.

A marked 21.5 km mountain loop in County Louth with 790 m of ascent, following forest tracks, the Poc Fada route and open mountain sections. Level B mandatory kit is required and GPS is not allowed.

Carnaween is a mountain running event in County Donegal with a long course of 7.80 km and 514 m of climb. The route crosses private farmland, has only major junctions marked, and requires mandatory Level B kit.

A 50 mile run around Croagh Patrick near Louisburgh, County Mayo, with a route that includes Sheefrey Pass, Tawynard Forest and Doolough Valley. Single entry tickets are listed at €87.50 and online sales close May 10, 2026.

A running event in the Burren, County Clare on 23 May 2026 offering a full marathon, half marathon and a 10 km run or walk, set along Ballyvaughan seafront amid distinctive rocky limestone scenery.

Mangerton is a mountain running race in County Kerry on 24 May 2026. The 9.60 km course gains about 700 m on rough, unmarked terrain, requires Level C mandatory kit, and allows GPS; it is part of the Munster Championship.

A 5 km community trail run and walk in the grounds of Slane Castle on May 24th, returned for its 11th year to raise funds for the local school parents association. The route follows estate and riverside trails and offers on the day t shirts..

Uphill mountain race on Slievenamon in County Tipperary on 27 May 2026. The course is 4.00 km with 576 m climb and requires Level B standard kit including a waterproof, whistle, phone and foil blanket.