3

Half marathons in Wales in July 2026

Find half marathons in Wales in July 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

Filter by category

Map

Event listings

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

Wales' spectacular mountain half marathon! A tough route with over 1,192m of ascent, most of which is up Wales’ highest peak, with incredible views all the way to Anglesey and a downhill finish too.
  • Sun 12 Jul 2026
  • £44.99-£49.99
Caernarfon, Gwynedd, UK

Snowdonia Trail Half Marathon Eryri

Wales' spectacular mountain half marathon! A tough route with over 1,192m of ascent, most of which is up Wales’ highest peak, with incredible views all the way to Anglesey and a downhill finish too.

  • Chip timing
  • Enter online
  • Mountainous
  • Age 17 & over
  • 12.9 miles trail running + 3959 ft ascent
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
  • Sat 25 Jul 2026
  • £16-£35
Aberdare, Mid Glamorgan, UK

Ooops I Ran It Again | Wales

Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!

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

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.