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50K ultra runs in Wales in September 2025

Find 50k ultra runs near me in Wales in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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The original Snowdonia Ultra Marathon. A beautiful route boasting stunning views, a hearty ascent of Yr Wyddfa (Snowdon) and a thrilling 7km descent to a heroes' welcome at the finish line!
  • Sun 13 Jul 2025
  • £89.99-£104.99
  • Sun 13 Jul 2025
  • £89.99-£104.99
Caernarfon, Gwynedd, UK

XTERRA Snowdonia Ultra Trail Marathon Eryri

The original Snowdonia Ultra Marathon. A beautiful route boasting stunning views, a hearty ascent of Yr Wyddfa (Snowdon) and a thrilling 7km descent to a heroes' welcome at the finish line!

  • Chip timing
  • Enter online
  • Mountainous
  • Age 20 & over
  • 57 km trail running + 2199 m ascent
  • Sat 21 Sep
Neath, Powys, UK

Black Beacon Mountain Races | 50K

  • 50 km trail running
  • Sat 28 Sep
Crickhowell, Powys, UK

Beacons to the Blacks | 32 Mile Ultra

  • 12 km trail running
  • Sat 5 Oct
Llanwrtyd Wells, Powys, UK

Trailhead Get Jerky Devil's Staircase Ultra Trail Race

  • 50 km trail running
  • Sun 20 Oct
Corwen, Clwyd, UK

Brenig Way 50K Trail

  • 50 km trail running
  • Sat 11 Jan 2025
Aberdovey, Gwynedd, UK

The Winter Run to the Castle Ultra | 50K ish Marathon

  • 50 km multi terrain running
  • Sat 26 Apr 2025
Prestatyn, Clwyd, UK

North Wales 50K & 100K | 50K

  • 50 km trail running
  • Sat 7 Jun 2025
Llangollen, Clwyd, UK

The Llangollen 50K

  • 50 km trail running
  • Sat 14 Jun 2025
Ruthin, Clwyd, UK

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

  • 32 miles trail running + 6663 ft ascent

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