6
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.
Filter by month
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- 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
- 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
- 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