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Trail Half marathons in Wales in November 2025
Find trail 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.
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- 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
- Sat 29 Nov
Caerphilly, Gwent, UK
Machen Trail Races: Half Marathon and Marathon | Half Marathon
- 14 miles trail running + 2719 ft ascent