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Half marathons in South Wales in November 2025

Find half marathons near me in South 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
  • 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 this Smurf Run at the picturesque Dare Valley in Wales! Who doesn't love those little blue characters and therefore a medal reflecting how adorable they are!
  • Sat 22 Nov
  • £22-£35
  • Sat 22 Nov
  • £22-£35
Aberdare, Mid Glamorgan, UK

Smurf Run - Wales | Half Marathon

Come and join this Smurf Run at the picturesque Dare Valley in Wales! Who doesn't love those little blue characters and therefore a medal reflecting how adorable they are!

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

EnduranceLife - Gower | Half Marathon

  • 14.3 miles trail running + 1916 ft ascent
  • Sat 15 Nov
Port Talbot, West Glamorgan, UK

Margam Park Trail Races | Half Marathon

  • 21.1 km trail running + 750 m ascent
  • 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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