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Trail Half marathons in North Wales
Find trail half marathons in North Wales in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sun 7 Dec
- £31.50
Prestatyn, Clwyd, UK
Sea 2 Summit | Offa's Dyke Half Marathon
The only way is up with this race along the Offas Dyke footpath. The scenery and terrain become more and more beautiful, and challenging as you go!
- Chip timing
- Enter online
- Age 17 & over
- 13.1 miles trail running
- Sun 12 Apr 2026
- £33.50
Prestatyn, Clwyd, UK
Summit 2 Sea - The Offa's Dyke Half Marathon
Gather on the summit of Moel y Parc at over 1300ft and follow the Offa's Dyke National Trail to the coast to finish line on the beach at Prestatyn.
- Newcomers
- Enter online
- Hilly
- Event village
- Rural
- Coast
- Mountains
- Age 17 & over
- 13.8 miles trail running + 2450 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 4 Apr 2026
Aberdyfi, Gwynedd, UK
Aberdyfi Half Marathon | Half Marathon
- 21.1 km trail running + 850 m ascent