6

Trail runs in Gwynedd

Find trail runs in Gwynedd in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

Filter by date

Filter by place

Map

Event listings

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

  • Sat 11 - Sun 12 Jul 2026
Caernarfon, Gwynedd, UK

Snowdonia Trail Marathon Eryri Events

  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2
  • Sat 4 Apr 2026
Aberdyfi, Gwynedd, UK

Aberdyfi Half Marathon | Half Marathon

  • 21.1 km trail running + 850 m ascent

Other UK events

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.