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Marathons in Wales

Find 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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Discover the only fully closed road marathon in Wales. Set in the beautiful Pembrokeshire Coast National Park, the finish line has a wild atmosphere with a stunning red carpet finish and great crowds!
  • Sun 29 Jun
  • £55
  • Sun 29 Jun
  • £55
Tenby, Pembrokeshire, UK

The Veloforte Wales Marathon

Discover the only fully closed road marathon in Wales. Set in the beautiful Pembrokeshire Coast National Park, the finish line has a wild atmosphere with a stunning red carpet finish and great crowds!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 26.2 miles road running
The most epic trail marathon in Wales! Iconic and spectacular trails, circumnavigating then climbing the slopes of Wales' highest peak - Yr Wyddfa (Snowdon).
  • Sat 12 Jul
  • £57.99-£61.99
  • Sat 12 Jul
  • £57.99-£61.99
Caernarfon, Gwynedd, UK

XTERRA Snowdonia Trail Marathon Eryri

The most epic trail marathon in Wales! Iconic and spectacular trails, circumnavigating then climbing the slopes of Wales' highest peak - Yr Wyddfa (Snowdon).

  • Chip timing
  • Enter online
  • Mountainous
  • Age 18 & over
  • 27.3 miles trail running + 1685 m ascent
A classic distance from Penrice Castle on a loop featuring Oxwich Bay and its nature reserve, the stunning Wales Coast Path, picnic at Rhossili, the Gower Way then a celebration and medal!
  • Sat 19 Jul
  • £139
  • 7 charities
  • Sat 19 Jul
  • £139
  • 7 charities
Swansea, West Glamorgan, UK

Gower Peninsula Ultra Challenge | Marathon 42K Loop

A classic distance from Penrice Castle on a loop featuring Oxwich Bay and its nature reserve, the stunning Wales Coast Path, picnic at Rhossili, the Gower Way then a celebration and medal!

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 42 km multi terrain running + 900 m ascent
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!
  • Sun 7 Dec
  • £41.50
  • Sun 7 Dec
  • £41.50
Prestatyn, Clwyd, UK

Sea 2 Summit | Offa's Dyke Full 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 18 & over
  • 26.2 miles trail running
  • Sat 26 Apr
Brecon, Powys, UK

Rasus y Bannau | Marathon

  • 26.5 miles trail running
  • Sat 26 Apr
Haverfordwest, Pembrokeshire, UK

EnduranceLife - Pembrokeshire | Marathon

  • 27.3 miles trail running
  • Sat 10 May
Cardiff, UK

Radyr Trail Races: Half Marathon and Marathon | Marathon

  • 26.2 miles trail running
  • Sun 11 May
Mold, Clwyd, UK

Excalibur Trail Races | Marathon

  • 26.4 miles trail running
  • Sun 11 May
Mold, Clwyd, UK

Excalibur Trail Races | Marathon Canicross

  • 26.4 miles trail running
  • Thu 15 May
Llanidloes, Powys, UK

The Severn Challenge | The MTC Hafren Ultra

  • 26 miles trail running
  • Sat 17 May
Merthyr Tydfil, Powys, UK

OTT Trail Marathon and 10 Mile Race - Brecon Beacons | Marathon

  • 26.2 miles trail running
  • Sat 14 Jun
Crickhowell, Powys, UK

Black Mountains 50 & 32 Mile Ultra, Marathon & Half Marathon | Marathon

  • 27 miles trail running + 5505 ft ascent
  • Sun 12 Oct
Newport, Rhode Island, USA

Amica Newport Marathon

  • 26.2 miles road running

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