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Trail Half marathons in Northern Ireland

Find trail half marathons in Northern 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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  • Sun 23 Nov
Carrickfergus, County Antrim, UK

The Monument Run | Half Marathon

  • 13.1 miles trail running
  • Sat 29 Nov
Newcastle, County Down, UK

Newcastle Way Marathon & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sat 13 Dec
Carrickfergus, County Antrim, UK

Early Xmas Run | Half Marathon

  • 13.1 miles trail running
  • Sat 31 Jan 2026
Ballycastle, County Antrim, UK

Rabbit Run | Half Marathon

  • 13.1 miles trail running + 292 m ascent
  • Sat 30 May 2026
Ballycastle, County Antrim, UK

Norn Iron 100 Half Marathon

  • 13.1 miles trail running

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