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Trail runs in South Wales in April 2026

Find trail runs in South Wales in April 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.

Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this event instead and earn a fantastic London-themed medal!
  • Sun 26 Apr
  • FREE-£35
Aberdare, Mid Glamorgan, UK

The Nearly But Not Quite London Marathon | Wales

Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this event instead and earn a fantastic London-themed medal!

  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Families
  • Beginner-friendly
  • Event village
  • Park
  • All ages
  • Sat 11 Apr
  • £33-£46
Bridgend, South Glamorgan, UK

Vale Coastal Trail Races

  • 10 miler
  • Trail run
  • Ultra run
  • Sat 11 Apr
  • £19.95-£39.95
Swansea, West Glamorgan, UK

RTT Gower Trail Half Marathon & 10K

  • 5K run
  • 10K run
  • Half marathon
  • Wed 15 - Mon 20 Apr
  • £549
Chepstow, Gwent, UK

South Wales 200

  • 5 days trail running
  • Sat 25 Apr
  • £95
Penarth, South Glamorgan, UK

The Medieval Backyard Ultra

  • 1 hr trail running

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