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Half Marathons Found in Wales
View all ↓Half Marathons In Wales 2025 - 2026
The most comprehensive list of Half Marathons in Wales in 2025 - 2026. Find your perfect race!
Top Tip: Viewing this page in the default “Featured view” will show you all the Best Half Marathons in and around Wales. If you’re ready to set yourself a challenge right now then switching to “Bookable view” will show you those that can be booked instantly and securely through Find A Race. Guarantee your place today and get training :-)
Race Calendar: Half Marathons In Wales
🚀Boosted
PHOENIX - South Wales - Flamingo Run
Treharris, Mid Glamorgan
20 Jul 25
£22.00 - £39.95
Midnight Mountain Marathon
Brecon, Powys
07 Jun 25
£45.00 - £65.00
Midsummer Mortimer Trail
Ludlow, Shropshire
21 Jun 25
£30.00 - £50.00
Cholmondeley Castle Run Series
Malpas
22 Jun 25
£35.00 - £65.00
Offer
10% OFF
XTERRA Snowdonia Trail Marathon Eryri, Ultra, Half Marathon & 10k
Caernarfon, Gwynedd
12 Jul 25
£31.99 - £94.99
4.8
Ludlow10
Ludlow, Shropshire
13 Jul 25
£15.00 - £35.00
My Little Care Bear Run - Wales
Dare Valley Country Park, Aberdare, CF44 7PS
19 Jul 25
£27.00 - £35.00
PHOENIX - South Wales - Flamingo Run
Treharris, Mid Glamorgan
20 Jul 25
£22.00 - £39.95
Ogwen | Yr Helgi Du Skyline
Betws-Y-Coed, Gwynedd
02 Aug 25
£31.99 - £74.99
Brecon Beacons Trails
Brecon, Talybont-on-Usk, Powys
09 Aug 25
£37.00 - £352.00
Chepstow Running Festival 5k, 10k & Half Marathon
Chepstow, Gwent
16 Aug 25
£28.00 - £142.00
4.3
SNOWDONIA SEA2SKY 25k & 53K ULTRA
Barmouth, Gwynedd
06 Sep 25
£42.00 - £77.00
Afan Forest Trail Half Marathon & 10k
Bryn Bettws Lodge, Port Tolbot SA12 9SP
18 Oct 25
£31.36 - £36.59
The Giddy Horse: Backyard 24hr, 12hr, 8hr Races (Solo & Team) Plus Canicross, Night Races, Obstacle Course Race & Trail Races
Chepstow, Gwent
25 Oct 25 - 26 Oct 25
£25.92 - £216.00
The Cardiff 1.5k, 5k, 10k & Half Marathon MoRun
Cardiff
08 Nov 25
£12.00 - £30.00
5.0
Beacons Ultra, Marathon & Half Marathon
Brecon, Powys
08 Nov 25
£40.00 - £80.00
A Christmas Carol Bobble Hat Run - Wales
Dare Valley Country Park, Aberdare, CF44 7PS
21 Dec 25
£32.00 - £40.00
Spice Up Your Run - Wales
Dare Valley Country Park, Aberdare, CF44 7PS
24 Jan 26
£27.00 - £35.00
Chepstow Running Festival
Chepstow, Monmouthshire
25 Jan 26
£28.00 - £142.00
4.3
St David's Day Dragon Run 2026
Dare Valley Country Park, Dare, Aberdare, Wales, CF44 7PS
01 Mar 26
£27.00 - £35.00
The Pendine Sands Races
Carmarthen, Carmarthenshire
05 Apr 26
£29.00 - £300.00
5.0
Chepstow Running Festival
Chepstow, Gwent
15 Aug 26
£28.00 - £142.00
4.3
Conquer Cardiff Summer 5k, 10k and Half Marathon
Cardiff
07 Jun 25
£25.00 - £30.00
4.5
6 Geese a-laying Run – Virtual
Ross-on-Wye, Herefordshire
12 Dec 25
£25.00 - £39.00
9 Ladies Dancing – Virtual
Ross-on-Wye, Herefordshire
15 Dec 25
£25.00 - £39.00
10 Lords a Leaping – Virtual
Ross-on-Wye, Herefordshire
16 Dec 25
£25.00 - £39.00
Showing 1-25 of 25 results