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Trail runs in Wales in March 2026

Find trail runs in Wales in March 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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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
  • £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!

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

  • 5K run
  • CaniCross
  • 10K run
  • Families
  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 11 & over
A great chance to stretch your legs with this event at the start of the Easter holidays, with a canicross race going off before the main pack. You'll find out distance and route as you run!
  • Sat 28 Mar
  • £19
Mold, Clwyd, UK

Moel Famau Easter 'Piece of String' Race

A great chance to stretch your legs with this event at the start of the Easter holidays, with a canicross race going off before the main pack. You'll find out distance and route as you run!

  • Trail run
  • CaniCross
  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Age 18 & over
  • Sun 1 Mar
  • £45-£85
Cardiff, Mid Glamorgan, UK

Brecon to Cardiff Xtreme & Taff Xtreme Marathon

  • Ultra run
  • Marathon
  • Sun 1 Mar
  • FREE-£42
Pwllheli, Gwynedd, UK

St Davids Day Celebration North Wales Pilgrims Half Marathon

  • Half marathon
  • Fun run
  • Sun 1 Mar
  • £80
Cardiff, Mid Glamorgan, UK

Brecon to Cardiff Ultra

  • 70 km trail running
  • Sat 14 - Sun 15 Mar
  • £16.99-£24.99
Wrexham, Clwyd, UK

Brynkinalt Running Festival

  • CaniCross 2
  • 5K run
  • 10K run
  • Sat 14 Mar
  • £48-£80
Crickhowell, Powys, UK

Beast of the Blacks 10, 20 and 40 Mile Trail Running Challenge

  • Trail run 3
  • Sat 14 Mar
  • £40-£50
Carmarthen, Dyfed, UK

Brechfa Trail Races: Half Marathon & Marathon

  • Half marathon
  • Marathon
  • Sun 22 Mar
  • £30-£35
Port Talbot, West Glamorgan, UK

Red Warrior Multi Terrain Races | 20K

  • 20 km multi terrain running

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