Half marathons in Wales
Find half marathons near me in Wales for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Sat 12 Jul
- £44.99-£49.99
- Sat 12 Jul
- £44.99-£49.99
XTERRA Snowdonia Trail Half Marathon Eryri
Wales' spectacular mountain half marathon! A tough route with over 1,192m of ascent, most of which is up Wales’ highest peak, with incredible views all the way to Anglesey and a downhill finish too.
- Chip timing
- Enter online
- Mountainous
- Age 17 & over
- 12.9 miles trail running
- Sun 28 Sep
- £34
- Sun 28 Sep
- £34
Pembrokeshire Half Marathon
The Half starts and finishes in the beautiful village of Dale in the National Park and is run on undulating quiet country lanes with spectacular views from St Ann's Head and features two lighthouses!
- Chip timing
- Enter online
- Undulating
- Age 17 & over
- 13.1 miles road running
- Sun 5 Oct
- 20 charities
- Sun 5 Oct
- 20 charities
Cardiff Half Marathon
Secure your charity place in the Cardiff Half today. Run for charity in one of the best half marathons in the world while supporting top UK charities. Find a cause and join their team today!
- Families
- Carbon offset
- Wheelchair users
- Recycling
- Entertainment
- Music
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Fancy dress
- Event village
- Urban
- Coast
- Sustainability policy
- Public transport links
- Age 17 & over
- 13.1 miles road running
- Sun 7 Dec
- £31.50
- Sun 7 Dec
- £31.50
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 1 Mar 2026
- £41.99-£49.99
- Sun 1 Mar 2026
- £41.99-£49.99
Jones o Gymru Anglesey Half Marathon
The 'UK's most beautiful Half Marathon'! Fast run flanked by breathtaking views of Snowdonia National Park and the Menai Straits. It's no wonder this race has become a firm favourite.
- Chip timing
- Enter online
- Undulating
- PB
- Age 17 & over
- 13.1 miles road running
- Sat 10 May
Radyr Trail Races: Half Marathon and Marathon | Half Marathon
- 13.1 miles trail running
- Sat 10 May
Afan Chase Trail Races | Half Marathon
- 13.1 miles trail running
- Sat 7 Jun
Midnight Mountain Marathon | Half Marathon
- 13.1 miles road running + 1425 ft ascent
- Sat 14 Jun
Black Mountains 50 & 32 Mile Ultra, Marathon & Half Marathon | Half Marathon
- 13 miles trail running + 2738 ft ascent
- Sun 19 Oct
Ron Skilton Memorial Half Marathon | Half Marathon
- 13 miles trail running