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Trail runs in Wales in September 2025

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

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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

This new Ultra distance event urges you to get to know this river and the great, varied country which accompanies it.
  • Fri 5 Sep
  • £195-£295
  • Fri 5 Sep
  • £195-£295
Llanuwchllyn, Gwynedd, UK

The Dee Way 120

This new Ultra distance event urges you to get to know this river and the great, varied country which accompanies it.

  • Enter online
  • GPS tracking
  • Age 18 & over
  • 50 hrs trail running
This new Ultra distance event urges you to get to know this river and the great, varied country which accompanies it.
  • Fri 5 Sep
  • £92.50
  • Fri 5 Sep
  • £92.50
Corwen, Clwyd, UK

The Dee Way 60

This new Ultra distance event urges you to get to know this river and the great, varied country which accompanies it.

  • Enter online
  • GPS tracking
  • Age 18 & over
  • 20 hrs trail running
  • Sat 6 Sep
Hengoed, Gwent, UK

The RIDUM

  • 30 miles trail running + 4252 ft ascent
  • Sat 13 Sep
Mold, Clwyd, UK

Machlud Sunset Trail Half Marathon

  • 21.1 km trail running + 750 m ascent
  • Fri 19 Sep
Crickhowell, Powys, UK

Trails & Tarmac Summer Back Yard Ultra

  • 32 miles trail running + 285 ft ascent
  • Sun 21 Sep
Betws-y-Coed, Clwyd, UK

Llyn Alwen 11.5K & Canicross | 11.5K

  • 11.5 km trail running
  • Sun 21 Sep
Betws-y-Coed, Clwyd, UK

Llyn Alwen 11.5K & Canicross | 11.5K Canicross

  • 11.5 km trail running
  • Sun 21 Sep
Llanwrda, Dyfed, UK

Pumsaint Trail Half Marathon | Kids Race

  • 1 mile trail running
  • Sun 21 Sep
Llanwrda, Dyfed, UK

Pumsaint Trail Half Marathon | 6.5 Miles

  • 6.5 miles trail running
  • Sun 21 Sep
Llanwrda, Dyfed, UK

Pumsaint Trail Half Marathon | 13 Miles

  • 13 miles trail running
  • Sun 28 Sep
Port Talbot, West Glamorgan, UK

Run The Trails Margam | 5K

  • 5 km trail running
  • Sun 28 Sep
Port Talbot, West Glamorgan, UK

Run The Trails Margam | 10K

  • 10 km trail running

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