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50K ultra runs in North Wales

Find 50k ultra runs in North 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
  • Sat 25 Apr 2026
  • £52.50
Prestatyn, Clwyd, UK

North Wales 50K

This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.

  • Chip timing
  • Enter online
  • GPS tracking
  • Age 18 & over
  • 50 km trail running
A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.
  • Sat 6 Jun 2026
  • £53.50
Llangollen, Clwyd, UK

The Llangollen 50K

A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.

  • Beginner-friendly
  • Enter online
  • Event village
  • Rural
  • Age 21 & over
  • 50 km trail 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
  • Sat 11 - Sun 12 Jul 2026
Caernarfon, Gwynedd, UK

Snowdonia Trail Marathon Eryri Events

  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2

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