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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 52 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
19
Su

MTC Y Draig Goch

Trail Run 35 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
May 2026
May
2-3
Sa - Su

Rasus y Bannau

Trail Run 43 km 76 km 104 km
May
3
Su

Sirhowy Challenge

Trail Run 10 mi
May
4
Mo

Devauden Races

Trail Run 5 km 10 km
May
9-10
Sa - Su

Epona 100

Trail Run 100 km 100 mi
May
10
Su

Margam Wild Trail Runs

Trail Run 5 km 10 km Half Marathon
May
16
Sa

OTT Marathon

Trail Run 10 mi 26 mi
May
22
Fr

Three Parks Challenge 10K

Trail Run 10 km
May
23
Sa

True Grit Trail Marathon

Trail Run 26 mi
May
30
Sa

Saturn Running - Cwmdare

Trail Run 3 km 5 km ... 26 mi 50 km
June 2026
Jun
6
Sa

Pegasus - The VOGUM

Trail Run 40 mi
Jun
6
Sa

Midnight Mountain Marathon

Trail Run 13 mi 26 mi
Jun
13
Sa

Offa's Dyke 15

Trail Run 15 mi
Jun
13
Sa

Man v Horse

Trail Run 22 mi
July 2026
Jul
4
Sa

Pegasus - The PIGUM

Trail Run 15 mi 30 mi
Jul
5
Su

Dorstone Dawdle 10K

Road Race Trail Run 5 km 10 km
Jul
11
Sa

Black Mountains 50

Trail Run 13 mi 27 mi 32 mi 50 mi
Jul
18
Sa

Rabbit Run Wales

Trail Run 12 km 40 km
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