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Half marathons in South Wales

Find half marathons near me in South Wales 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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Click an event for full event details, location, route, sustainability, what's included and how to enter.

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It's time to conquer the Cardiff Summer Half Marathon, have a morning out with family, friends, or colleagues and enjoy the stunning Bute Park then receive your superb medal!
  • Sat 29 Jun
  • £25-£30
  • Entries closed
  • Sat 29 Jun
  • £25-£30
  • Entries closed
Cardiff, UK

Conquer Cardiff Summer | Half Marathon

It's time to conquer the Cardiff Summer Half Marathon, have a morning out with family, friends, or colleagues and enjoy the stunning Bute Park then receive your superb medal!

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage! Charity runners, entertainment, huge crowd support and Event Village.
  • Sun 6 Oct
  • FREE-£78
  • 21 charities
  • Sun 6 Oct
  • FREE-£78
  • 21 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 runners, entertainment, huge crowd support and Event Village.

  • 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
An exciting new addition to the day of running! A flat and fast course with iconic landmarks, Transporter Bridge, historic city centre, modern riverfront, natural scenery and coastal wildlife.
  • Sun 13 Apr 2025
  • £34-£44
  • Sun 13 Apr 2025
  • £34-£44
Newport, Gwent, UK

ABP Newport Wales Half Marathon

An exciting new addition to the day of running! A flat and fast course with iconic landmarks, Transporter Bridge, historic city centre, modern riverfront, natural scenery and coastal wildlife.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
  • Sat 6 Jul
Port Talbot, West Glamorgan, UK

Afan Forest Trail Races | Half Marathon

  • 13.1 miles trail running
  • Sat 17 Aug
Chepstow, Gwent, UK

Chepstow Running Festival | Half Marathon

  • 13.1 miles road running
  • Sat 9 Nov
Port Talbot, West Glamorgan, UK

Margam Trail Races | Half Marathon

  • 13.1 miles trail running
  • Sat 9 Nov
Cardiff, UK

Cardiff MoRun | Half Marathon

  • 13.1 miles road running
  • Sat 14 Dec
Neath, West Glamorgan, UK

Celtic Half Marathon

  • 13 miles trail running

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