Half marathons in Wales

Find half marathons near me in Wales for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!

Sat 20 Sep
£22-£35

Sat 20 Sep
£22-£35

Aberdare, Mid Glamorgan, UK

Fraggle Run - Wales | Half Marathon

Who doesn't know and love The Fraggles! Come and join Saturn Running for the Fraggle Run and earn a medal based on the adorable little creatures!!

Enter online
Age 17 & over

13.1 miles road running

Entries closed

Secure your charity place in the Cardiff Half today. Run for charity in one of the best half marathons in the world while supporting top UK charities. Find a cause and join their team today!

Sun 5 Oct
Entries closed

Sun 5 Oct
Entries closed

Cardiff, South Glamorgan, UK

Oysho Cardiff Half

Secure your charity place in the Cardiff Half today. Run for charity in one of the best half marathons in the world while supporting top UK charities. Find a cause and join their team today!

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 + 81 m ascent

Come and join Saturn Too for our spooky Scare Bear Run!

Sat 18 Oct
£22-£35

Sat 18 Oct
£22-£35

Aberdare, Mid Glamorgan, UK

Scare Bear Run - Wales | Half Marathon

Come and join Saturn Too for our spooky Scare Bear Run!

Enter online
Age 17 & over

13.1 miles road running

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Cardiff!

Sat 8 Nov
£30-£35

Sat 8 Nov
£30-£35

Cardiff, UK

Cardiff MoRun | Half Marathon

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Cardiff!

Chip timing
Enter online
Flat
Age 17 & over

13.1 miles road running

The only way is up with this race along the Offas Dyke footpath. The scenery and terrain become more and more beautiful, and challenging as you go!

Sun 7 Dec
£31.50

Sun 7 Dec
£31.50

Prestatyn, Clwyd, UK

Sea 2 Summit | Offa's Dyke Half Marathon

The only way is up with this race along the Offas Dyke footpath. The scenery and terrain become more and more beautiful, and challenging as you go!

Chip timing
Enter online
Age 17 & over

13.1 miles trail running

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 1 Mar 2026
£44.99-£49.99

Sun 1 Mar 2026
£44.99-£49.99

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.