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Running Calendar Wales 2025-2026

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Explore the best running races in Wales for 2025-2026! Our updated list features 213 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
October 2026
Oct
18
Su

Phoenix Running - Aberfan

Backyard Ultra 5 km 10 km Half Marathon Marathon
Oct
18
Su

Abergele 5k & 10k

5 km 10 km
Oct
24
Sa

Marathon Eryri

Marathon
Oct
24
Sa

Moel Famau Halloween 'piece of String' Night Race

Oct-Nov
30-1
Fr - Su

Black Beacon Mountain Trail Races

Trail Run 21 mi 50 km 50 mi 100 mi
November 2026
Nov
1
Su

Anglesey Trail Half Marathon

Trail Run 10 km Half Marathon
Nov
7
Sa

Endurancelife | Gower

Trail Run 7 mi 14 mi 27 mi 34 mi
Nov
14
Sa

Dusk Till Dawn The Winter Edition

Backyard Ultra 8 mi 16 mi
Nov
14-15
Sa - Su

Slate Trail Ultra

Trail Run 80 km 147 km
Nov
14
Sa

Afan Forest Trail Half Marathon

10 km Half Marathon
Nov
15
Su

Conwy Half Marathon

13 mi
December 2026
Dec
11
Fr

Trail by Torchlight

Trail Run 8 km
Dec
19
Sa

Nightmare before Xmas Trail ½ Marathon

Trail Run 13 mi