Half Marathon calendar Wales 2025-2026

Oct

5

Sunday

Cardiff Half Marathon

Cardiff, Wales

13 mi

Oct

5

Sunday

Bangor City Half Marathon

Bangor, Wales

10 km 13 mi

Oct

18

Saturday

Afan Forest Trail Half Marathon

Port Talbot, Wales

10 km 13 mi

Oct

26

Sunday

Giddy Horse Half Marathon, Trail, & Steeplechase Obstacle Course Races

Chepstow, Wales

Trail Run Obstacle Run 4 mi 8 mi 13 mi

Nov

8

Saturday

Endurancelife | Gower

Oxwich, Wales

Trail Run 10 km 21 km 42 km 55 km

Nov

8

Saturday

Beacons Ultra

Talybont-on-Usk, Wales

Trail Run 13 mi 26 mi 49 mi

Nov

9

Sunday

Anglesey Trail Half Marathon

Llanfairpwllgwyngyll, Wales

Trail Run 10 km 13 mi

Nov

15

Saturday

Margam Trail Races

Port Talbot, Wales

Trail Run 5 km 10 km 21 km

Nov

16

Sunday

Conwy Half Marathon

Conwy, Wales

13 mi

Nov

16

Sunday

Cardiff Trail Half Marathon

Tongwynlais, Wales

Trail Run 13 mi

Dec

6

Saturday

Secret Santa Tinsel Half Marathon

Black Mountains, Wales, Wales

Trail Run 12 km 10 mi 13 mi

Dec

7

Sunday

Sea 2 Summit - Offa's Dyke Half/Full/Ultra

Prestatyn, Wales

Trail Run 13 mi 26 mi 33 mi

Dec

13

Saturday

Winter Celtic Trail Races

Aberdare, Wales

Trail Run 13 mi 26 mi 34 mi

Mar

1

Sunday

Jones O Gymru Anglesey Half Marathon

Menai Bridge, Wales

10 km 13 mi

Mar

1

Sunday

Saturn Running - Aberdare

Aberdare, Wales

Backyard Ultra 5 km 7 km ... 26 mi 50 km

Mar

14

Saturday

Nant yr Arian Silver Trail

Ystumtuen, Wales

Trail Run 2 mi 10 km 21 km

Mar

22

Sunday

Merthyr Half Marathon

Merthyr Tydfil, Wales

13 mi

Sep

13

Sunday

Lake Vyrnwy Half Marathon

Llanwddyn, Wales

13 mi