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Flat 50K ultra runs in Wales

Find flat 50k ultra runs in Wales in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Come and join the Dashing Dog Charity run in the picturesque Dare Valley Country Park. Not only is the scenery beautiful but you will earn one of these awesome medals for your 50K!
  • Sun 15 Mar 2026
  • £24-£38
Aberdare, Mid Glamorgan, UK

The Dashing Dog Charity Run | Wales | 50K

Come and join the Dashing Dog Charity run in the picturesque Dare Valley Country Park. Not only is the scenery beautiful but you will earn one of these awesome medals for your 50K!

  • Enter online
  • Flat
  • Traffic free
  • Age 20 & over
  • 50 km road running
Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run 50K?
  • Sat 30 May 2026
  • £22-£35
Aberdare, Mid Glamorgan, UK

Rocky at 50 Run | Wales | 50K

Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run 50K?

  • Enter online
  • Flat
  • Traffic free
  • Age 20 & over
  • 50 km road running
This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.
  • Sun 18 Oct 2026
  • £51.50
Corwen, Clwyd, UK

Brenig Way 50K Trail

This regional marked footpath of 32 miles winds it's way through some beautifully remote upland scenery. Start at the town of Corwen in the Dee Valley, and follow the signage up the Dee Valley.

  • Beginner-friendly
  • Enter online
  • GPS tracking
  • Flat
  • Event village
  • Rural
  • Age 18 & over
  • 50 km trail running + 1450 m ascent

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