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Runs in Hertfordshire in December 2025

Find runs in Hertfordshire in December 2025 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Starting and finishing on the fantastic Ridlins Stadium athletics track, the half marathon winds its way around the superb traffic-free tarmac routes that cover the town of Stevenage.
  • Sun 14 Dec
  • FREE-£31
Stevenage, Hertfordshire, UK

ATW Stevenage Winter Half Marathon & 10K

Starting and finishing on the fantastic Ridlins Stadium athletics track, the half marathon winds its way around the superb traffic-free tarmac routes that cover the town of Stevenage.

  • Families
  • Recycling
  • Newcomers
  • Music
  • Event village
  • Sustainability policy
  • All ages
  • Fun run
  • 10K run
  • Half marathon
Finish the year with a brand new PB and celebrate the arrival of a brand new year with a glass of fizz and a healthy twist at this New Year's Eve running extravaganza.
  • Wed 31 Dec
  • £27-£29
St Albans, Hertfordshire, UK

ATW St Albans New Years Eve 10K

Finish the year with a brand new PB and celebrate the arrival of a brand new year with a glass of fizz and a healthy twist at this New Year's Eve running extravaganza.

  • Families
  • Recycling
  • Newcomers
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • 10 km road running + 108 ft ascent
  • Sat 6 Dec
Letchworth Garden City, Hertfordshire, UK

First Saturday of the Month 5K

  • 5 km road running

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