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5K runs in South Wales

Find 5k runs near me in South Wales for 2025/2026 - 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.

Come and join the day of running and aim to complete a 5K at your own pace on a scenic course then receive a fantastic themed medal and goody bag at the finish!
  • Sat 20 Sep
  • £22-£27
Aberdare, Mid Glamorgan, UK

Fraggle Run | Wales | 5K

Come and join the day of running and aim to complete a 5K at your own pace on a scenic course then receive a fantastic themed medal and goody bag at the finish!

  • Enter online
  • Traffic free
  • Age 12 & over
  • 5 km trail running
Come and join Saturn Too for our spooky Scare Bear Run!
  • Sat 18 Oct
  • £22-£27
Aberdare, Mid Glamorgan, UK

Scare Bear Run - Wales | 5K

Come and join Saturn Too for our spooky Scare Bear Run!

  • Enter online
  • Age 12 & over
  • 5 km road running
MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the 5K, Cardiff!
  • Sat 8 Nov
  • £25-£30
Cardiff, UK

Cardiff MoRun | 5K

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the 5K, Cardiff!

  • Chip timing
  • Enter online
  • Flat
  • All ages
  • 5 km road running
Come and join this Smurf Run at the picturesque Dare Valley in Wales! Who doesn't love those little blue characters and therefore a medal reflecting how adorable they are!
  • Sat 22 Nov
  • £22-£27
Aberdare, Mid Glamorgan, UK

Smurf Run - Wales | 5K

Come and join this Smurf Run at the picturesque Dare Valley in Wales! Who doesn't love those little blue characters and therefore a medal reflecting how adorable they are!

  • Enter online
  • Age 12 & over
  • 5 km trail running + 0 ft ascent
Come and join in Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a bobble hat as well as one of the incredible themed medals!!
  • Sun 21 Dec
  • £27-£32
Aberdare, Mid Glamorgan, UK

A Christmas Carol Bobble Hat Run - Wales | 5K

Come and join in Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a bobble hat as well as one of the incredible themed medals!!

  • Enter online
  • Age 12 & over
  • 5 km trail running
If you're looking to spice up your run or you need some running like you've never needed running before, then this is the event for you!
  • Sat 24 Jan 2026
  • £22-£27
Aberdare, Mid Glamorgan, UK

Spice Up Your Run - Wales | 5K

If you're looking to spice up your run or you need some running like you've never needed running before, then this is the event for you!

  • Enter online
  • Age 12 & over
  • 5 km trail running + 249 ft ascent
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
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 28 Sep
Port Talbot, West Glamorgan, UK

RTT Margam 10K & 5K | 5K

  • 5 km trail running
  • Sat 15 Nov
Port Talbot, West Glamorgan, UK

Margam Park Trail Races | 5K

  • 5.1 km trail running + 140 m ascent
  • Sat 20 Dec
Aberdare, Mid Glamorgan, UK

Santa Run Wales | 5K

  • 5 km trail running
  • Sun 1 Feb 2026
Cardiff, UK

The Cardiff 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km road running

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