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Trail Running Calendar near Merthyr Tydfil 2026-2027

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Explore the top trail runs near Merthyr Tydfil for 2026-2027! We've gathered 73 exciting races in the area. Check out our detailed list below to find your next local race.

October 2026
Oct
11
Su

Cat's Back Fell Race

Trail Run 7 mi 12 km
Oct
17
Sa

Saturn Running - Aberdare

Road Race Trail Run Backyard Ultra 3 km 5 km ... Marathon 50 km
Oct
18
Su

Ron Skilton Memorial Half Marathon

Trail Run 12 km 13 mi
Oct-Nov
30-1
Fr - Su

Black Beacon Mountain Races

Trail Run 21 mi 50 km 50 mi 100 mi
Oct
31
Sa

Pilgrim 6

Trail Run 32 km
Monthly updates for Merthyr Tydfil

Get new running races (and updates) in your inbox every month.
Oct
31
Sa

Winter Sugar Loaf

Trail Run 10 km
November 2026
Nov
1
Su

The Twmbarlwm Terror

Trail Run 7 mi
Nov
7
Sa

Beacons Ultra

Trail Run 13 mi 26 mi 49 mi
Nov
7
Sa

OTT Ultra Marathon

Trail Run 30 mi
Nov
14
Sa

Afan Forest Trail Half Marathon

Trail Run 10 km Half Marathon
Nov
14
Sa

Trail Half Marathon Wales

Trail Run 10 km Half Marathon
Nov
14
Sa

Llyn y Fan

Trail Run 9 km
Nov
21
Sa

Saturn Running - Aberdare

Road Race Trail Run Backyard Ultra 3 km 5 km ... Marathon 50 km
Nov
28
Sa

Blorenge Fell Race

Trail Run 6 km
Nov
28
Sa

Machen Trail Races

Trail Run 14 mi 26 mi
Nov
28
Sa

Phoenix Running - Trelewis

Road Race Trail Run Backyard Ultra 5 km 10 km Half Marathon Marathon
Nov
29
Su

RTT Afan Forest Trail 10K

Trail Run 5 km 10 km
December 2026
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

Skirrid Xmas Hill Race

Trail Run 6 km
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