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Trail runs in UK in December 2025

Find trail runs in UK 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, medal and goody bag.
  • Wed 31 Dec
  • £16-£35
Egham, Surrey, UK

River Thames Run

Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, medal and goody bag.

  • Families
  • Beginner-friendly
  • Event village
  • Rural
  • Age 12 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • + 1 more race
Join in for the Salcombe RNLI Resolution Fun Run — a 7km scenic trail run looping around the beautiful Snape’s Point and back.
  • Wed 31 Dec
  • £5-£10
Salcombe, Devon, UK

Salcombe RNLI Resolution Fun Run

Join in for the Salcombe RNLI Resolution Fun Run — a 7km scenic trail run looping around the beautiful Snape’s Point and back.

  • Families
  • Beginner-friendly
  • Enter online
  • Event village
  • All ages
  • 7 km trail running + 350 ft ascent
  • Sun 28 Dec
Walton-on-Thames, Surrey, UK

Year End Marathon & Half Marathon

  • Half marathon
  • Marathon
  • Sun 28 Dec
Reading, Berkshire, UK

Gut Buster

  • 10K run
  • 10 miler
  • Sun 28 Dec
Horsham, West Sussex, UK

Heritage Trail Series - Winter

  • 5K run
  • 10K run
  • Sun 28 Dec
Liss, Hampshire, UK

Brutal - Longmoor

  • Trail run
  • 10 miler
  • Sun 28 Dec
Southampton, Hampshire, UK

Winter X

  • Ultra run
  • 10K run
  • Trail run 2
  • 50K ultra run
  • Sun 28 Dec
Buckingham, Buckinghamshire, UK

Trust 10K Run

  • 10 km trail running
  • Sun 28 Dec
Dorking, Surrey, UK

Trust 10K Run - Polesden Lacey

  • 10 km trail running
  • Sun 28 Dec
Polegate, East Sussex, UK

The Christmas Charity Run at Rathfinny

  • 10 km trail running + 184 m ascent
  • Wed 31 Dec
Sidmouth, Devon, UK

Final Countdown 10K

  • 10 km trail running

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