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Half marathons in Hertfordshire in March 2025

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

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Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 22 Mar 2025
  • £25-£37.50
  • Sat 22 Mar 2025
  • £25-£37.50
Buntingford, Hertfordshire, UK

Moo-rathon, Calf and Hen K | 6 Hour

Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 6 hrs trail running
Marathon, Half and 10K! Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 22 Mar 2025
  • £25-£37.50
  • Sat 22 Mar 2025
  • £25-£37.50
Buntingford, Hertfordshire, UK

Moo-rathon, Calf and Hen K | 4 Hour

Marathon, Half and 10K! Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 4 hrs trail running
Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
  • Sun 23 Mar 2025
  • £35-£37
  • Sun 23 Mar 2025
  • £35-£37
Waltham Cross, Hertfordshire, UK

ATW Run Fest at Lee Valley | Half Marathon

Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running + 79 ft ascent
  • Sun 2 Mar 2025
Berkhamsted, Hertfordshire, UK

Berkhamsted Half Marathon and Five Mile Run | Half Marathon

  • 13.1 miles road running
  • Sat 29 Mar 2025
Tring, Hertfordshire, UK

Run the Wild Half Marathon - Spring Edition

  • 21.1 km trail running
  • Sat 29 Mar 2025
Broxbourne, Hertfordshire, UK

Gratitude 25K

  • 25 km road running

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