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Trail Half marathons in Ireland

Find trail half marathons in Ireland in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Race through the beautiful castle grounds over a half marathon route for all levels from first-timers to elite then celebrate with friends and family in the festival village.
  • Sun 24 May 2026
  • £36-£45
Gort, Ireland

Lough Cutra Castle | Half Marathon

Race through the beautiful castle grounds over a half marathon route for all levels from first-timers to elite then celebrate with friends and family in the festival village.

  • Chip timing
  • Enter online
  • Age 17 & over
  • 21.1 km trail running
  • Sat 23 May 2026
Ballyvaughan, Ireland

Clare Burren Marathon Challenge | Half Marathon

  • 13.1 miles trail running

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