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Half marathons in Cardiff

Find half marathons near me in Cardiff for 2024/2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage! Charity places now available for 2025.
  • Sun 5 Oct 2025
  • FREE-£55
  • 13 charities
  • Sun 5 Oct 2025
  • FREE-£55
  • 13 charities
Cardiff, South Glamorgan, UK

Cardiff Half Marathon

An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage! Charity places now available for 2025.

  • Families
  • Carbon offset
  • Wheelchair users
  • Recycling
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles road running
  • Sat 9 Nov
Cardiff, UK

Cardiff MoRun | Half Marathon

  • 13.1 miles road running
  • Sat 8 Feb 2025
Cardiff, UK

The Cardiff 5K, 10K and Half Marathon Winter Warmer Run | Half Marathon

  • 13.1 miles road running
  • Sat 1 Mar 2025
Cardiff, UK

St David's Day Run | Half Marathon

  • 13.1 miles road running
  • Sat 1 Mar 2025
Cardiff, UK

St David's Day Run | 10K

  • 10 km road running

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