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5K runs in Wales in Spring

Find 5k runs in Wales in Spring - 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.

Come and get involved in the second St David's Day Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!
  • Sun 1 Mar 2026
  • £22-£27
Aberdare, Mid Glamorgan, UK

St Davids Day Dragon Run | 5K

Come and get involved in the second St David's Day Dragon Run in the beautiful Dare Valley Country Park in, of course, Wales!

  • Enter online
  • Age 12 & over
  • 5 km trail running
The courses are challenging but the event environment is relaxed and friendly. Runners of all abilities can get involved and enjoy a run out on those fabulous trails.
  • Sat 7 Mar 2026
  • £18-£20.50
Mold, Clwyd, UK

Loggerheads Trail 5K & 10K

The courses are challenging but the event environment is relaxed and friendly. Runners of all abilities can get involved and enjoy a run out on those fabulous trails.

  • Families
  • Newcomers
  • Dogs allowed
  • Event village
  • Park
  • Age 11 & over
  • 5K run
  • CaniCross
  • 10K run
Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!
  • Sun 26 Apr 2026
  • £22-£27
Aberdare, Mid Glamorgan, UK

The Nearly But Not Quite London Marathon - Wales | 5K

Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!

  • Enter online
  • Age 12 & over
  • 5 km trail running + 0 ft ascent
  • Sun 15 Mar 2026
Wrexham, Clwyd, UK

Brynkinalt Running Festival | 5K

  • 5 km trail running
  • Sun 22 Mar 2026
Port Talbot, West Glamorgan, UK

Red Warrior Multi Terrain Races

  • 5K run
  • 10K run
  • Multi-terrain run
  • CaniCross 3
  • Sun 5 Apr 2026
Carmarthen, Dyfed, UK

The Pendine Races | 5K

  • 5 km trail running
  • Sat 11 Apr 2026
Swansea, West Glamorgan, UK

RTT Gower Trail Half Marathon & 10K | 5K

  • 5 km trail running

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