6

Half marathons in Wales in November 2025

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

Filter by date

Filter by place

Filter by category

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

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 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
Mold, Clwyd, UK

Loggerheads 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

Other UK events

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.