Trail Running Calendar Wales 2026-2027

We have found 180 Trailruns in Wales. Check below where and when you can find the races.

A fell race near Criggion covering 11.5 km with 790 m of ascent on a partially marked course that requires navigational skills. Entry is £8 and teams may enter free of charge.

A guided trail run of about 10 km around Llangollen visiting Castell Dinas Bran and the Abbey and returning via the canal. The group keeps a steady pace with regular regrouping stops; members may enter for free while standard entry is £19.5..

October 2026

Repeat a 9 mile mixed-terrain loop at The Nature Centre, completing as many laps as possible within an eight hour limit.

A 7 hour Time Challenge at Dare Valley Country Park with flexible distances from 3 km to ultramarathon options. Finishers receive a themed medal, distance pins and refreshments including doughnuts and ice cream.

A short fell race on Fan Fawr covering 3.2 km with 305 m of climb, requiring experience and navigational skills. Entry is on the day only for £2; minimum age over 16 and junior races to be confirmed.

An uphill only 10 km from Ruthin to the Jubilee Tower on Moel Famau, featuring mixed terrain and a summit finish above 550 m; transport back to town can be purchased on site.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

The Twin Peaks Race in Aberystwyth challenges runners with ascents of both Pen Dinas and Constitution Hill on an 11.7 km route. A shorter junior race on the promenade is also available. The event features varied terrain and finishes with a..

Trail races at Loggerheads Copuntry Park with a 6km loop, a 12km two-lap option and a 6km Canicross. Courses are marked and marshalled and entry fees range from £19 to £22.

A seven hour Time Challenge at Dare Valley Country Park offering distances from 3km to 50km, themed finisher medals and distance pins, on course aid with vegan options, and basic venue facilities including toilets and free parking.

Cadair X is a 13.1 mile mountain half marathon with 1165 m of ascent that climbs to the 893 m summit of Cadair Idris. The marked route crosses woodland, glacial lakes and technical summit terrain and a GPX file is available.

A *50 km* trail on the marked Brenig Way from Corwen to Llyn Brenig dam, with 1450 m ascent, varied upland and forest terrain, three checkpoints, required kit and GPS trackers provided.

Join the Aberfan Memorial Run in Merthyr Tydfil to honour the 1966 victims and support the Aberfan Memorial Charity. Choose 5 km to ultra on a scenic tarmac loop along the Taff Trail with flexible start times and official timing.

Coastal trail running at Oxwich Bay on 18 October 2026 with 21 km, 10 km and 5 km options plus chip timing and finisher medals.

A memorial road and off road event organised by Green Events featuring a half marathon and a 12k in mountainous scenery. The race is cupless, open to those over 16, and lists online and on the day entry options.

A continuous three-stage route visiting Snowdon, Cadair Idris and Pen y Fan covering 17 miles and 2,334 metres of ascent, usually completed in around 19 hours. Options include guided events with transport and support or planning your own ch..

A guided 13 km loop around Llyn Trawsfynydd in Southern Snowdonia on runnable trails, led at a steady pace with regular regrouping stops; organised by OutFit with standard and member entry options.

A series of mountain trail races across the Black Mountains and Brecon Beacons offering four distances from 21 miles to 100 miles. Routes combine marked sections, GPS navigation and staffed checkpoints with mountain safety cover.

A 32 km fell event on Pen y Fan with three ascents via six different routes and an optional 16 kg weighted category; navigation and GPX use are required.

Winter fell race up Sugar Loaf covering 9.6 km with 485 m ascent from The Crown, Pantygelli; full WFRA kit required and entry via Fabian4 with limited parking.

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