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Trail Running Calendar near Builth Wells 2025-2026

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Monthly updates for Builth Wells

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

Explore the top trail runs near Builth Wells for 2025-2026! We've gathered 28 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
27
Sa

Midwinter Mortimer Trail

Trail Run 16 mi 30 mi
January 2026
Jan
10
Sa

Reservoir Roundabout

Trail Run 12 mi 20 mi
March 2026
Mar
14
Sa

Nant yr Arian Silver Trail

Trail Run 2 mi 3 mi 10 km 13 mi
April 2026
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 35 mi
May 2026
May
2-3
Sa - Su

Rasus y Bannau

Trail Run 43 km 75 km 100 km
May
2
Sa

Pegasus - The HOWUM

Trail Run 30 mi
May
9-10
Sa - Su

Epona 100

Trail Run 100 mi
May
16
Sa

OTT Marathon

Trail Run 10 mi 26 mi
June 2026
Jun
6
Sa

Midnight Mountain Marathon

Trail Run Half Marathon Marathon
Jun
13
Sa

Offa's Dyke 15

Trail Run 15 mi
July 2026
Jul
4
Sa

Pegasus - The PIGUM

Trail Run 30 mi
Jul
8
We

The MTC Hafren Ultra

Trail Run 27 mi
Jul
8-12
We - Su

Severn Challenge

Trail Run 26 mi 30 mi ... 57 mi 59 mi
Jul
9
Th

The MTC Severn Plod Ultra

Trail Run 48 mi
Jul
19
Su

Hillfort Hustle 10 Mile Trail Race

Trail Run 5 mi 10 mi
Jul
25
Sa

Beacons Way Ultra 100km

Trail Run 100 km
Jul
25-26
Sa - Su

Beacons Way Ultra 100 Mile

Trail Run 100 mi