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Half marathons in Northumberland in October 2025

Find half marathons near me in Northumberland in October 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Race along hard-packed trails around the shore of Kielder Water in this beautiful but tough half-marathon, all part of a weekend celebration of running!
  • Sun 5 Oct 2025
  • £32-£34
  • Sun 5 Oct 2025
  • £32-£34
Hexham, Northumberland, UK

Active Northumberland Kielder Half Marathon

Race along hard-packed trails around the shore of Kielder Water in this beautiful but tough half-marathon, all part of a weekend celebration of running!

  • Enter online
  • Undulating
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running

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