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Trail 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 trail runs in Wales for 2026-2027! Our updated list features 128 exciting races across the region. Find your next race in Wales below and join the running community at these great events!

September 2026
Sep
27
Su

RTT Margam 10k

Trail Run 5 km 10 km
October 2026
Oct
3
Sa

Town to Tower 10K

Trail Run 10 km
Oct
3
Sa

Saturn Running - Cwmdare

Trail Run 3 km
Oct
10
Sa

The Loop Ultra - Dolanog

Trail Run 32 mi
Oct
11
Su

Rad Dau Gopa Aberystwyth Twin Peaks Race

Trail Run 11 km 12 km
Oct
17
Sa

Loggerheads Autumn Trails

Trail Run 6 km 12 km
Oct
17
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
Oct
18
Su

Brenig Way 50K Trail Race

Trail Run 50 km
Oct-Nov
30-1
Fr - Su

Black Beacon Mountain Races

Trail Run 34 km 50 km 80 km 160 km
Oct
31
Sa

Pilgrim 6

Trail Run 32 km
November 2026
Nov
1
Su

Anglesey Trail Half Marathon

Trail Run 10 km Half Marathon
Nov
7
Sa

Endurancelife | Gower

Trail Run
Nov
7
Sa

Beacons Ultra

Trail Run
Nov
7
Sa

Ras Rhobell Fawr Fell Race

Trail Run 6 mi
Nov
14-15
Sa - Su

Slate Trail Ultra

Trail Run 80 km 147 km
Nov
14
Sa

Margam Trail Races

Trail Run 5 km 10 km Half Marathon
Nov
14
Sa

The Anglesey 3 Peaks 55K Run Challenge

Trail Run 55 km
Nov
21
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
Nov
29
Su

RTT Afan Forest 10K

Trail Run 5 km 10 km
December 2026
Dec
5
Sa

Alyn Waters Winter Trails

Trail Run 5 km 10 km