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Runs in Wales in December 2025

Find runs in Wales 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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Alyn Waters is a great place for trail running! The country park is accessible, the paths easy to follow and with a variety of terrain, and with a few ups and downs to make you really earn your medal!
  • Sat 6 Dec
  • £17.50-£21.50
Wrexham, Clwyd, UK

Alyn Waters Winter Trails | 5K & 10K

Alyn Waters is a great place for trail running! The country park is accessible, the paths easy to follow and with a variety of terrain, and with a few ups and downs to make you really earn your medal!

  • Families
  • Newcomers
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 11 & over
  • 5K run
  • 10K run
  • CaniCross
Starting at Prestatyn seafront, the National Trail waymarkers take you up into the hills south, with the scenery and terrain becoming more and more beautiful and challenging as you go!
  • Sun 7 Dec
  • £31.50-£51.50
Prestatyn, Clwyd, UK

Sea 2 Summit | Offa's Dyke Half/Full/Ultra

Starting at Prestatyn seafront, the National Trail waymarkers take you up into the hills south, with the scenery and terrain becoming more and more beautiful and challenging as you go!

  • Newcomers
  • Event village
  • Urban
  • Age 17 & over
  • Half marathon
  • Marathon
  • Ultra run
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
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
  • Newcomers
  • 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.

  • Newcomers
  • Dogs allowed at venue
  • Event village
  • Age 18 & over
  • Trail run
  • CaniCross
Come and join in at the Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a bobble hat as well as one of the incredible themed medals!
  • Sun 21 Dec
  • £16-£40
Aberdare, Mid Glamorgan, UK

A Christmas Carol Bobble Hat Run | Wales

Come and join in at the Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a bobble hat as well as one of the incredible themed medals!

  • Families
  • Newcomers
  • Event village
  • Park
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Sat 6 Dec
Crickhowell, Powys, UK

Secret Santa Figgy Pud 14K, Turkey Ten Mile & Half Marathon Du Mulled Wine

  • Trail run
  • 10 miler
  • Half marathon
  • Sun 7 Dec
Swansea, West Glamorgan, UK

The Great Christmas Fun Run

  • Fun run
  • 5K run
  • 10K run
  • Sat 13 Dec
Grecynon, Mid Glamorgan, UK

Celtic Trail Races

  • Marathon
  • Ultra run
  • Half marathon
  • Sun 14 Dec
Cardiff, UK

Festive 10K

  • 10 km road running

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