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Runs in Wales in May 2025
Find runs near me in Wales in May 2025 - 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 10 - Sun 11 May
- £92.50-£145
- Sat 10 - Sun 11 May
- £92.50-£145
Prestatyn, Clwyd, UK
24 Hours South - The Offa's Dyke Ultra
The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.
- Newcomers
- Chip timing
- Enter online
- GPS tracking
- Event village
- Rural
- Age 18 & over
- 24 hrs trail running
- Sat 3 May
Treharris, Mid Glamorgan, UK
Phoenix South Wales - Dragonfly Run
- 7 hrs multi terrain running
- Tue 6 May
Brecon, Powys, UK
Llanfrynach 3-4-5 Mile Road Race Series & 1.5 Mile Junior Fun Run - Race 1 | Junior Fun Run
- 1.5 miles road running
- Tue 6 May
Brecon, Powys, UK
Llanfrynach 3-4-5 Mile Road Race Series & 1.5 Mile Junior Fun Run - Race 1 | Senior Race
- 3 miles road running
- Sat 10 May
Cardiff, UK
Radyr Trail Races: Half Marathon and Marathon | Marathon
- 26.2 miles trail running
- Sat 10 May
Port Talbot, West Glamorgan, UK
Afan Chase Trail Races | Half Marathon
- 13.1 miles trail running
- Sat 10 May
Cardiff, UK
Radyr Trail Races: Half Marathon and Marathon | Half Marathon
- 13.1 miles trail running
- Sun 11 May
Llangollen, Clwyd, UK
Llangollen Trail 10K & Kids 1 Mile Race | Kids 1 Mile
- 1 mile trail running
- Sun 11 May
Caerphilly, Gwent, UK
Bryn Meadows Caerphilly 10K & Caerphilly 2K | 10K
- 10 km road running