Wales
Trail Running Calendar Wales 2026-2027
Explore the best trail runs in Wales for 2026-2027! Our updated list features 218 exciting trail runs across the region. Find your next trail run in Wales below and join the trail community at these great events!
September 2027
A 24 hour multi-lap endurance race on a 5 km coastal trail at Abersoch, with solo and two-person relay options and on-site support.
A fully waymarked, supported Sea to Summit ultramarathon from Caernarfon Castle to Yr Wyddfa and finish at Rhyd Ddu, covering 47 km with about 5600 ft ascent.
Three coastal trail races on the Gower Peninsula on 25th September 2027, including a 50-mile circuit plus 34-mile and 26-mile routes with checkpoints and GPS tracking.
October 2027
SAS Endurance in Talybont-on-Usk on 1-2 October 2027 offers full 64 km and half 32 km navigational routes with guided and self navigation options.
Trail races at Loggerheads Country Park offering 6 km, 6 km Canicross and 12 km routes on varied, fully marked trails with no time limits.
A 50 km trail race from Corwen to Llyn Brenig with 1450 m ascent, mixed upland terrain, three checkpoints with cut-offs, mandatory kit and GPS tracking.
A 250 mile non-stop, mostly on-road endurance race along Sustrans Route 8 from Holyhead to Cardiff Bay with an 88 hour time limit and strict self support rules.
Local club league event at Carneddau near Builth Wells on 16 October 2027 with family friendly and newcomer options and coaching available.
A memorial half marathon and 12k near the Neuadd Arms on 24 October 2027, mainly off-road in mountainous terrain with a cupless water policy.
November 2027
A 30 mile trail ultra through the Brecon Beacons from Merthyr Tydfil, with technical terrain, four checkpoints and a six hour cut-off at checkpoint three.
Trail half marathon and 10K in Newborough Forest with coastal sections, views of Eryri and an event village on 07 Nov 2027.
A 60 km winter loop on the Llŷn Peninsula following the Mariner’s Trail with individual and four person relay options, checkpoint support and a finisher medal.
February 2028
A point to point 27 mile section of the Severn Challenge from Plynlimon to Mid Wales Arts Centre with two staffed checkpoints and mandatory navigation kit.
A five day ultramarathon along the River Severn of roughly 220 miles with daily finisher medals, hotel accommodation, kit transfer and mandatory navigation and safety kit.
A 48 mile point to point ultra from Mid Wales Art Centre to Shrewsbury following the River Severn, with four checkpoints, vegan and gluten free food options, required 4.0 mph minimum pace and a bespoke finisher medal.
July 2028
A 47 mile ultra from Barmouth to Llanidloes largely on National Cycle Route 8. It is Day 3 of the six day MTC CYMRUN, has a limited field and a minimum pace requirement, and includes tracking and a finisher medal.
A single day ultra of about 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Limited field, mandatory kit and 4.0 mph cut offs; finishers receive an Afanc medal and champions receive bespoke trophies.
A point to point 34.8 mile ultra from Merthyr Tydfil to Barry Island following National Cycle Route 8. It is day six of the MTC CYMRUN series and uses preset cut offs based on a 4 mph minimum average speed.