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Trail 10K runs in Wales in July 2026

Find trail 10k runs in Wales in July 2026 - 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
  • £31.99-£37.99
Caernarfon, Gwynedd, UK

Snowdonia Trail Eryri 10K

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.

  • 9.8 km trail running + 1335 ft ascent
  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
A perfect Saturday trail 10K from Penrice Castle on a loop towards Oxwich Bay then back to the event hub for a medal, a picnic lunch and to enjoy the whole Ultra Challenge atmosphere.
  • Sat 18 Jul
  • £49
Swansea, West Glamorgan, UK

Gower Peninsula Ultra Challenge | 10K Loop

A perfect Saturday trail 10K from Penrice Castle on a loop towards Oxwich Bay then back to the event hub for a medal, a picnic lunch and to enjoy the whole Ultra Challenge atmosphere.

  • 10 km multi terrain running + 250 m ascent
  • Enter online
  • Undulating
  • Age 8 & over

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