10 Half marathons in Wales in March 2024

Find half marathons in and around Wales in March 2024 - search by date or place, display on a map or use the advanced search to find your perfect race.

Search by date

Search by place

Map view

Events calendar

Click an event for full event details, location, route, sustainability, what's included and how to enter.

The 'UK's most beautiful Half Marathon'! Fast run flanked by breathtaking views of Snowdonia National Park and the Menai Straits. It's no wonder this race has become a firm favourite.
  • Sun 3 Mar
  • £45.99-£47.99
  • Entries close soon
Anglesey, Isle of Anglesey, UK

Jones o Gymru Anglesey Half Marathon

The 'UK's most beautiful Half Marathon'! Fast run flanked by breathtaking views of Snowdonia National Park and the Menai Straits. It's no wonder this race has become a firm favourite.

  • Entries close soon
  • 13.1 miles road running
  • Sat 2 Mar
  • £35
Haverfordwest, Pembrokeshire, UK

Ras Dewi Sant | Half Marathon

Ras Dewi Sant is a great running weekend in Britian’s smallest city. There are 3 routes to choose from. Marathon, Half, and 10K.

  • 13.1 miles trail running
  • Sat 2 Mar
  • £27
Rhayader, Powys, UK

Rhayader Round the Lakes | 30K

Rhayader Round The Lakes 30km and a 10km race is based in Rhayader, Powys, Mid Wales.

  • 30 km road running
  • Sun 3 Mar
  • £25
Cardiff, Cardiff, UK

St David's Day Run | Half Marathon

To celebrate St David’s Day join in Bute Park Cardiff and take on a 5k, 10k and Half Marathon run, or the mini run for little dragons.

  • 13.1 miles road running
  • Sat 9 Mar
  • £32
Swansea, West Glamorgan, UK

Gower Trail Races | Half Marathon

Come join the Trail Revolution at Oxwich Bay for what promises to be an exhilerating and fun event.

  • 13.1 miles trail running
  • Sun 10 Mar
  • £23-£26
Merthyr Tydfil, Mid Glamorgan, UK

San Domenico 20 Mile and 10 Mile | 20 Miler

Take on the challenge of these scenic races, set on the Taff Trail in the heart of the Welsh Valleys.

  • 20 miles road running
  • Sat 16 Mar
  • £34
Carmarthen, Dyfed, UK

Brechfa Trail Races | Half Marathon

Brechfa Forest is one of Wales' spectacular hidden secrets.

  • 13 miles trail running
  • Sun 17 Mar
  • £38-£40
Burry Port, Dyfed, UK

Great Welsh Marathon Events | Half Marathon

A Fast, flat course set on the scenic Llanelli coastline

  • 13.1 miles road running
  • Sun 17 Mar
  • £30-£32
Merthyr Tydfil, Mid Glamorgan, UK

The Merthyr Half Marathon | Half Marathon

In 2024, test yourself against a challenging course through beautiful scenery.

  • 13.1 miles road running
  • Sun 24 Mar
  • £36-£38
Colwyn Bay, Clwyd, UK

Colwyn Bay Metric | Half Marathon

Both races start at the Athletics track in Colwyn bay, from here they head along to the promenade and head East along the coastline where both races have their turning points for you...

  • 13.1 km road running

Search options

Back to search options