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Trail runs in South Wales

Find trail runs in South 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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Get your Santa suits, reindeer antlers, and elf ears ready — Christmas is Coming, and so is the most magical fun run of the year!
  • Sat 20 Dec
  • £9.50
Aberdare, Mid Glamorgan, UK

Santa Run Wales

Get your Santa suits, reindeer antlers, and elf ears ready — Christmas is Coming, and so is the most magical fun run of the year!

  • Families
  • Beginner-friendly
  • Fancy dress
  • Event village
  • Park
  • All ages
  • Fun run
  • 5K run
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! Come and celebrate all things Spice Girls!
  • Sat 24 Jan 2026
  • £16-£35
Aberdare, Mid Glamorgan, UK

Spice Up Your Run | Wales

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! Come and celebrate all things Spice Girls!

  • Families
  • Beginner-friendly
  • Fancy dress
  • Event village
  • Park
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
  • £16-£35
Aberdare, Mid Glamorgan, UK

St Davids Day Dragon Run

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

  • Families
  • Beginner-friendly
  • Event village
  • Park
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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 2026
  • 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!

  • Families
  • Beginner-friendly
  • Event village
  • Park
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Sun 15 Feb 2026
Caerphilly, Gwent, UK

Caerphilly Trail 5K and 10K

  • 5K run
  • 10K run
  • Sun 22 Mar 2026
Port Talbot, West Glamorgan, UK

Red Warrior Multi Terrain Races | 20K

  • 20 km multi terrain running
  • Sat 11 Apr 2026
Swansea, West Glamorgan, UK

RTT Gower Trail Half Marathon & 10K

  • 5K run
  • 10K run
  • Half marathon
  • Sat 9 May 2026
Cardiff, UK

Radyr Trail Races: Half Marathon and Marathon

  • Half marathon
  • Marathon

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