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Marathons in North Wales in July 2025

Find marathons near me in North Wales in July 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 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

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