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Half marathons in North Wales

Find half marathons in North Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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The most beautiful half marathon in North Wales! Flanked by breathtaking views of Eryri (Snowdonia), the beauty and uniqueness of this event is what draws people from all over the UK!
  • Sun 1 Mar
  • £46.99-£49.99
Anglesey, Isle of Anglesey, UK

Jones o Gymru Anglesey Half Marathon

The most beautiful half marathon in North Wales! Flanked by breathtaking views of Eryri (Snowdonia), the beauty and uniqueness of this event is what draws people from all over the UK!

  • Chip timing
  • Enter online
  • Undulating
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running + 224 m ascent
Gather on the summit of Moel y Parc at over 1300ft and follow the Offa's Dyke National Trail to the coast to finish line on the beach at Prestatyn.
  • Sun 12 Apr
  • £33.50
Prestatyn, Clwyd, UK

Summit 2 Sea - The Offa's Dyke Half Marathon

Gather on the summit of Moel y Parc at over 1300ft and follow the Offa's Dyke National Trail to the coast to finish line on the beach at Prestatyn.

  • Beginner-friendly
  • Enter online
  • Hilly
  • Event village
  • Rural
  • Coast
  • Mountains
  • Age 17 & over
  • 13.8 miles trail running + 2450 ft ascent
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
  • £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
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.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 21.1 km trail running + 159 m ascent
  • Sun 1 Mar
Pwllheli, Gwynedd, UK

St Davids Day Celebration North Wales Pilgrims Half Marathon | Half Marathon

  • 21 km trail running
  • Sun 29 Mar
Llandudno, Clwyd, UK

Llandudno Half Marathon & 10 Mile | Half Marathon

  • 13.1 miles road running
  • Sat 4 Apr
Aberdyfi, Gwynedd, UK

Aberdyfi Half Marathon | Half Marathon

  • 21.1 km trail running + 850 m ascent
  • Sun 10 May
Llanrwst, Clwyd, UK

Snowdonia Half Marathon

  • 13.1 miles road running + 1919 ft ascent
  • Sun 6 Sep
Caernarfon, Gwynedd, UK

Caernarfon Half Marathon

  • Half marathon
  • Sun 4 Oct
Bangor, Gwynedd, UK

Bangor City 10K & Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sat 28 Nov
Mold, Clwyd, UK

Loggerheads Half Marathon

  • 13.1 miles trail running

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