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Running Calendar Wales 2026-2027

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Monthly updates for Wales

Get new running races (and updates) in your inbox every month.

Explore the best running races in Wales for 2026-2027! Our updated list features 227 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
December 2026
Dec
6
Su

The Great Christmas Fun Run

5 km 10 km
Dec
6
Su

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

Trail Run Half Marathon Marathon 56 km
Dec
11
Fr

Trail by Torchlight

Trail Run 8 km
Dec
12
Sa

Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
Dec
19
Sa

Nightmare before Xmas Trail ½ Marathon

Trail Run 13 mi
Dec
19
Sa

Moel Famau Festive 'Piece of String' Race

Trail Run 12 km
Dec
20
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km