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Half marathons in Wales in November 2025

Find half marathons near me in Wales in November 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Cardiff!
  • Sat 8 Nov
  • £30-£35
Cardiff, UK

Cardiff MoRun | Half Marathon

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Cardiff!

  • Chip timing
  • Enter online
  • Flat
  • Age 17 & over
  • 13.1 miles road running
Come and join the day of running and aim to complete a half marathon at your own pace on a scenic course then receive a fantastic Smurf-themed medal and goody bag at the finish!
  • Sat 22 Nov
  • £22-£35
Aberdare, Mid Glamorgan, UK

Smurf Run | Wales | Half Marathon

Come and join the day of running and aim to complete a half marathon at your own pace on a scenic course then receive a fantastic Smurf-themed medal and goody bag at the finish!

  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
  • Sat 8 Nov
Swansea, West Glamorgan, UK

EnduranceLife - Gower | Half Marathon

  • 14.3 miles trail running + 1916 ft ascent
  • Sun 9 Nov
Llanfairpwllgwyngyll, Isle of Anglesey, UK

Anglesey Trail Half Marathon & 10K | Half Marathon

  • 21.1 km trail running + 544 ft ascent
  • Sat 15 Nov
Port Talbot, West Glamorgan, UK

Margam Park Trail Races | Half Marathon

  • 21.1 km trail running + 750 m ascent
  • Sun 16 Nov
Conwy, Clwyd, UK

Conwy Half Marathon | Half Marathon

  • 13.1 miles road running + 1247 ft ascent
  • Sun 16 Nov
Cardiff, UK

Cardiff Trail Half Marathon

  • 13.1 miles trail running
  • Sat 29 Nov
Caerphilly, Gwent, UK

Machen Trail Races: Half Marathon and Marathon | Half Marathon

  • 14 miles trail running + 2719 ft ascent

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