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Trail 10K runs in Wales in Summer

Find trail 10k runs in Wales in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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A beautiful 10K with something for all runners on a mixture of road, track and trail and takes in the beautiful lower slopes of Yr Wyddfa (Snowdon), with a stunning downhill to the finish line.
  • Sat 11 Jul 2026
  • £31.99-£37.99
Caernarfon, Gwynedd, UK

Snowdonia Trail 10K Eryri

A beautiful 10K with something for all runners on a mixture of road, track and trail and takes in the beautiful lower slopes of Yr Wyddfa (Snowdon), with a stunning downhill to the finish line.

  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
  • 9.8 km trail running + 1335 ft ascent
  • Sun 21 Jun 2026
Llanwddyn, Powys, UK

Lake Vyrnwy 10K

  • 10 km trail running

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