4

Trail 10K runs in Wales in May 2026

Find trail 10k runs in Wales in May 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

Filter by place

Filter by date

Filter by category

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

  • Sat 9 May
  • £30
Port Talbot, West Glamorgan

Wild Hybrid Wales - Margam Country Park Solos | 10K Ruck Run

  • 10 km trail running
  • Sun 10 May
  • £21-£23
Llangollen, Clwyd

Llangollen Trail 10K & Kids 1 Mile Race | 10K

  • 10 km trail running
  • Sun 10 May
  • £36
Mold, Clwyd

Excalibur Trail Races | 10km

  • 10 km trail running
  • Sun 24 May
  • £17.70-£19.70
Pontypridd, Mid Glamorgan

Treforest 10K

  • 10 km trail running + 200 ft ascent

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.