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Trail Running Calendar near Merthyr Tydfil 2026-2027

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Monthly updates for Merthyr Tydfil

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

Explore the top trail runs near Merthyr Tydfil for 2026-2027! We've gathered 53 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
18
Su

CF64 Winter Race

Trail Run 10 km
Jan
18
Su

West Glamorgan XC League - Margam Park

Trail Run 5 mi
Jan
24
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
February 2026
Feb
1
Su

West Glamorgan XC League - Kenfig Nature Reserve

Trail Run 4 mi
Feb
22
Su

Sorbrook Slog

Trail Run 7 mi
Feb-Mar
27-1
Fr - Su

Black Mountains Weekend Fell & Trail Running Retreat

Trail Run 11 mi 12 mi 22 mi
March 2026
Mar
1
Su

Brecon to Cardiff Classic

Trail Run 70 km
Mar
1
Su

Brecon to Cardiff Xtreme

Trail Run Marathon 75 km
Mar
1
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... 50 km 7 hr
Mar
15
Su

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... Marathon 50 km
Mar
15
Su

West Glamorgan XC League - Gnoll Park

Trail Run 5 mi
April 2026
Apr
4
Sa

Pegasus - The BOWUM

Trail Run 30 mi
Apr
11
Sa

Vale Coastal Races

Trail Run 10 mi 19 mi 33 mi
Apr
12
Su

The Kymin Dash

Trail Run 7 mi
Apr
18
Sa

MTC Afanc

Trail Run 40 mi
Apr
18
Sa

Beast Of The Beacons

Trail Run 10 mi 20 mi 40 mi
Apr
18-19
Sa - Su

Cymoedd Sir Fynwy

Trail Run 20 mi 30 mi 50 mi
Apr
19
Su

MTC Y Draig Goch

Trail Run 47 mi
Apr
25
Sa

Mon & Brec Canal 40 Mile Race

Trail Run 40 mi
Apr
26
Su

Saturn Running - Cwmdare

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