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Half marathons in Wales in Summer

Find half marathons in Wales in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Ooops I Ran It Again...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
  • £22-£35
Aberdare, Mid Glamorgan, UK

Ooops I Ran It Again - Wales | Half Marathon

Ooops I Ran It Again...who hasn't completed a race, sworn they will never run again and then booked onto another one the following day!

  • Enter online
  • Age 17 & over
  • 13.1 miles road running
  • Sat 6 Jun 2026
Brecon, Powys, UK

Midnight Mountain Marathon | Half Marathon

  • 13.1 miles road running + 1425 ft ascent
  • Sun 12 Jul 2026
Caernarfon, Gwynedd, UK

Snowdonia Trail Half Marathon Eryri

  • 12.9 miles trail running + 3959 ft ascent

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