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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.

Get your Santa suits, reindeer antlers, and elf ears ready — Christmas is Coming, and so is the most magical fun run of the year!
  • Sat 20 Dec
  • £9.50
Aberdare, Mid Glamorgan, UK

Santa Run Wales

Get your Santa suits, reindeer antlers, and elf ears ready — Christmas is Coming, and so is the most magical fun run of the year!

  • Families
  • Beginner-friendly
  • Fancy dress
  • Event village
  • Park
  • All ages
  • Fun run
  • 5K run
A great chance to stretch your legs with this event on the last Saturday before Christmas, with a Canicross race going off before the main pack.
  • Sat 20 Dec
  • £19
Mold, Clwyd, UK

Moel Famau Festive 'Piece of String' Race

A great chance to stretch your legs with this event on the last Saturday before Christmas, with a Canicross race going off before the main pack.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Age 18 & over
  • Trail run
  • CaniCross
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, pick-and-mix medal and goody bag.
  • Sat 20 Dec
  • £20-£22
Lincoln, Lincolnshire, UK

Rumble In The Jumble II

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, pick-and-mix medal and goody bag.

  • Families
  • Beginner-friendly
  • Event village
  • Age 12 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • + 1 more race
It's December, so what better way to finish the year than with a Christmas event? Follow the Windmill Way route over half marathon distance.
  • Sat 20 Dec
  • £27-£32
Bury Saint Edmunds, Suffolk, UK

Christmas Canter | Half Marathon

It's December, so what better way to finish the year than with a Christmas event? Follow the Windmill Way route over half marathon distance.

  • Chip timing
  • Enter online
  • Hilly
  • Age 18 & over
  • 13.1 miles road running + 764 ft ascent
Chaos on the Calverley Millennium Way. A 12km/7.5 mile trail race taking place on the fully marked Calverley Millennium Way footpath. Find out why it's Chaos...
  • Sat 20 Dec
  • £22
Leeds, West Yorkshire, UK

Calverley Chaos

Chaos on the Calverley Millennium Way. A 12km/7.5 mile trail race taking place on the fully marked Calverley Millennium Way footpath. Find out why it's Chaos...

  • Beginner-friendly
  • Enter online
  • Undulating
  • Event village
  • Age 18 & over
  • 12 km trail running + 600 ft ascent
The ‘Slow and Dirty’ could actually be better described as the Fast and Clean, as its a very level 19k race along the hard surface of an old railway line.
  • Sun 21 Dec
  • £32
Sturminster Newton, Dorset, UK

Slow and Dirty

The ‘Slow and Dirty’ could actually be better described as the Fast and Clean, as its a very level 19k race along the hard surface of an old railway line.

  • Beginner-friendly
  • Dogs allowed at venue
  • Fancy dress
  • Event village
  • Age 16 & over
  • Trail run
  • CaniCross
If you prefer to put on a pair of trainers rather than open presents, drink and eat Christmas dinner (or if you want to get a run in before you do all of that) then this is the event for you!
  • Thu 25 Dec
  • £16-£35
Egham, Surrey, UK

Christmas Day Cracker Run

If you prefer to put on a pair of trainers rather than open presents, drink and eat Christmas dinner (or if you want to get a run in before you do all of that) then this is the event for you!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Welcome to the 6-hour Boxing Day Challenge, where you can run the distance of your choice on an out-and-back route along the River Thames, with fuel stations, bespoke medal and goody bag.
  • Fri 26 Dec
  • £16-£35
Egham, Surrey, UK

Boxing Day Challenge

Welcome to the 6-hour Boxing Day Challenge, where you can run the distance of your choice on an out-and-back route along the River Thames, with fuel stations, bespoke medal and goody bag.

  • Families
  • Beginner-friendly
  • Event village
  • Age 12 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • + 1 more race
Join the final event of the year and see it out with a bang! You can choose the medal you want from a selection from throughout the year!
  • Sat 27 Dec
  • £16-£35
Staines, Surrey, UK

Year End Time Turner

Join the final event of the year and see it out with a bang! You can choose the medal you want from a selection from throughout the year!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
  • Sat 20 Dec
Tiverton, Devon, UK

Christmas Canter

  • 10K run
  • Half marathon
  • Marathon
  • Ultra run
  • Sat 20 Dec
Penrith, Cumbria, UK

Tour De Helvellyn

  • 38 miles fell running + 2000 m ascent
  • Sun 21 Dec
Edinburgh, UK

Santa & Elf Dash

  • Fun run
  • 5K run
  • 10K run
  • Sun 21 Dec
Helston, Cornwall, UK

Trust 10 - Godolphin

  • 10 km trail running
  • Sun 21 Dec
Middlesbrough, North Yorkshire, UK

Festive Ormesby10

  • 10 km trail running
  • Sun 21 Dec
Norwich, Norfolk, UK

Tinsel10 Christmas Trail Run

  • 10 km trail running
  • Sun 21 Dec
Norwich, Norfolk, UK

Trust10 at Blickling Estate

  • 10 km trail running
  • Mon 22 Dec
Polegate, East Sussex, UK

The Festive Friston Forest 5 Mile Night Trail Run

  • 5 miles trail running
  • Wed 24 Dec
Thatcham, Berkshire, UK

Santa Claws 10K

  • 10K run
  • CaniCross
  • 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

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