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Half marathons in Wales in Autumn

Find half marathons in Wales in Autumn - filter by date, location or category, 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!
  • Sun 4 Oct
  • £5-£60
Cardiff, South Glamorgan, UK

Oysho Cardiff Half

An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!

  • 13.1 miles road running + 81 m ascent
  • Families
  • Carbon offset
  • Venue accessible
  • Recycling
  • Entertainment
  • Music
  • Chip timing
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 17 & over
Anglesey's most beautiful trail half, set in the stunning surroundings of Newborough Forest and Traeth Llanddwyn, which once hosted the Commonwealth Mountain and Ultra Distance Running Championships.
  • Sun 1 Nov
  • £39.99-£51.99
Llanfairpwllgwyngyll, Isle of Anglesey, UK

Anglesey Trail Half Marathon

Anglesey's most beautiful trail half, set in the stunning surroundings of Newborough Forest and Traeth Llanddwyn, which once hosted the Commonwealth Mountain and Ultra Distance Running Championships.

  • 21.1 km trail running + 159 m ascent
  • Chip timing
  • Enter online
  • Age 18 & over
  • Sun 6 Sep
  • £40-£42
Caernarfon, Gwynedd, UK

Caernarfon Half Marathon

  • Half marathon
  • Sun 13 Sep
  • £35
Beaumaris, Isle of Anglesey, UK

Beaumaris Run Fest Weekend | Half Marathon

  • 13.1 miles road running
  • Sun 13 Sep
  • £38-£40
Llanwddyn, Powys, UK

Lake Vyrnwy Half Marathon

  • 13.1 miles road running
  • Sun 27 Sep
  • £35
Haverfordwest, Pembrokeshire, UK

Pembrokeshire Half Marathon

  • 13.1 miles road running
  • Sun 4 Oct
  • £40-£42
Bangor, Gwynedd, UK

Bangor City 10K & Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 15 Nov
  • £42-£44
Conwy, Clwyd, UK

Conwy Half Marathon | Half Marathon

  • 13.1 miles road running + 1247 ft ascent
  • Sat 28 Nov
  • £35-£60.50
Mold, Clwyd, UK

Loggerheads Half Marathon

  • 13.1 miles trail running

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