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Trail runs in North Wales in August 2025

Find trail runs near me in North Wales in August 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

40K of skyline racing circling Ogwen and one of the trail running events as part of the Snowman multi-activity weekend.
  • Sat 2 Aug 2025
  • £74.99-£80.99
  • Sat 2 Aug 2025
  • £74.99-£80.99
Betws-y-Coed, Clwyd, UK

Ogwen | Yr Helgi Du 40K

40K of skyline racing circling Ogwen and one of the trail running events as part of the Snowman multi-activity weekend.

  • Chip timing
  • Enter online
  • Mountainous
  • Age 18 & over
  • 40 km trail running
Skyline racing in Ogwen over 25K and one of the trail running events as part of the Snowman multi-activity weekend.
  • Sat 2 Aug 2025
  • £49.99-£55.99
  • Sat 2 Aug 2025
  • £49.99-£55.99
Betws-y-Coed, Clwyd, UK

Ogwen | Yr Helgi Du 25K

Skyline racing in Ogwen over 25K and one of the trail running events as part of the Snowman multi-activity weekend.

  • Chip timing
  • Enter online
  • Mountainous
  • Age 18 & over
  • 25 km trail running
A beautiful and historic 10K in the Ogwen Valley and one of the trail running events as part of the Snowman multi-activity weekend.
  • Sat 2 Aug 2025
  • £31.99-£37.99
  • Sat 2 Aug 2025
  • £31.99-£37.99
Betws-y-Coed, Clwyd, UK

Ogwen | Yr Helgi Du 10K

A beautiful and historic 10K in the Ogwen Valley and one of the trail running events as part of the Snowman multi-activity weekend.

  • Chip timing
  • Enter online
  • Hilly
  • Age 15 & over
  • 10 km trail running
This challenge involves a beautiful 7.2km loop being used, which will test you with it's 500m of ascent each time, with competitors completing as many laps of this as possible in 12 or 24 hours.
  • Sat 16 Aug 2025
  • £59.95-£219.95
  • Sat 16 Aug 2025
  • £59.95-£219.95
Mold, Clwyd, UK

Moel Famau 12 & 24hr Challenge | 12hr Challenge

This challenge involves a beautiful 7.2km loop being used, which will test you with it's 500m of ascent each time, with competitors completing as many laps of this as possible in 12 or 24 hours.

  • Enter online
  • GPS tracking
  • Age 18 & over
  • 12 hrs trail running
This challenge involves a beautiful 7.2km loop being used, which will test you with it's 500m of ascent each time, with competitors completing as many laps of this as possible in 12 or 24 hours.
  • Sat 16 Aug 2025
  • £91.95-£379.95
  • Sat 16 Aug 2025
  • £91.95-£379.95
Mold, Clwyd, UK

Moel Famau 12 & 24hr Challenge | 24hr Challenge

This challenge involves a beautiful 7.2km loop being used, which will test you with it's 500m of ascent each time, with competitors completing as many laps of this as possible in 12 or 24 hours.

  • Enter online
  • GPS tracking
  • Age 18 & over
  • 24 hrs trail running

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