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Half marathons in Hertfordshire in May 2025

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

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Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
  • Sat 24 May
  • £34-£36
  • Sat 24 May
  • £34-£36
Buntingford, Hertfordshire, UK

Farmmageddon | Half Marathon

Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.

  • Chip timing
  • Enter online
  • Traffic free
  • Age 18 & over
  • 13.1 miles trail running
  • Sun 11 May
Letchworth Garden City, Hertfordshire, UK

The Greenway Challenge

  • 13 miles trail running

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