Wales close

Running Calendar Wales 2025-2026

Header image

Explore the best running races in Wales for 2025-2026! Our updated list features 193 exciting races across the region. Find your next race in Wales below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons
November 2025
Nov
9
Sunday

Anglesey Trail Half Marathon

Trail Run 10 km Half Marathon
Nov
15-16
Sa - Su

Slate Trail Ultra

Trail Run 80 km 147 km
Nov
15
Saturday

Margam Trail Races

Trail Run 5 km 10 km Half Marathon
Nov
15
Saturday

Trails & Tarmac Backyard Ultra

Backyard Ultra 12 hr
Nov
16
Sunday

Conwy Half Marathon

13 mi
Nov
16
Sunday

Cardiff Trail Half Marathon

Trail Run Half Marathon
Nov
16
Sunday

Guided Trail Run - Dolwyddelan

Trail Run 10 km
Nov
16
Sunday

MT10 (Multi-Terrain 10)

Trail Run 10 mi
Nov
22
Saturday

Elan Valley 10 Mile Road Race

10 mi
Nov
22
Saturday

Saturn Running - Cwmdare

Trail Run 3 km 7 km ... Marathon 50 km
Nov
29
Saturday

Loggerheads Half Marathon

Trail Run 7 km
Nov
30
Sunday

RTT Afan Forest 10K

Trail Run 5 km 10 km
Nov
30
Sunday

Hospice of the Valleys Chase the Christmas Pudding Festive Family Fun Run

5 km
December 2025
Dec
6
Saturday

Secret Santa Tinsel Half Marathon

Trail Run 14 km Half Marathon
Dec
6
Saturday

Alyn Waters Winter Trails

Trail Run 10 km
Dec
6
Saturday

Noah's Ark Reindeer Run

Dec
7
Sunday

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

Trail Run Half Marathon Marathon 33 mi
Dec
7
Sunday

The Great Christmas Fun Run

5 km 10 km
Dec
13
Saturday

Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
Dec
13
Saturday

Run4All 5km Santa Run

5 km
Articles
Top 10 Marathons in the Netherlands - The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run - Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series