Trail Running Calendar Wales 2025-2026

Race scenic trails at Margam Country Park with castle views on a 5K or 10K loop. Fully marked and marshalled with chip timing, water stations and a finisher medal, ideal for new and experienced runners.

Take on the Town to Tower 10k on 3 October 2026, an all uphill 10k from Ruthin to the Jubilee Tower atop Moel Famau. Expect varied trails, steep climbs and stunning summit views in this scenic autumn challenge.

Run a scenic 32 mile loop in the Cambrian Mountains from Camp Plas on 10 October 2026 with a fully marked, well supported course. Enjoy exclusive weekend camping, BBQ, live music and lakeside activities, entries limited to 100.

Take on the scenic Twin Peaks & Ras Consti in Aberystwyth, with a testing 11.7 kilometre senior route over Pen Dinas and Constitution Hill. Starts and finishes on the promenade with great views, cafes and family friendly junior races.

Enjoy scenic autumn trails at Loggerheads Country Park with 6 km and 12 km options suitable for all abilities, including canicross. Family friendly with no time limits and early starts for quieter running.

Take on the Brenig Way 50 km trail through the Dee Valley and Clocaenog Forest, finishing on the Llyn Brenig dam. Expect technical climbs, riverside paths and full electronic timing with GPS trackers to keep you on course.

Run the Black Beacon Mountain Races around Hay on Wye across the Brecon Beacons and Black Mountains, from waterfall and forest trails to exposed ridgelines. Choose 100 mile, 50 mile, 50 km or 21 mile routes with camping and support.

Run the Anglesey Trail Half Marathon or 10 km through Newborough Forest and across Llanddwyn Island, from sandy beaches to winding woodland trails with views to Snowdonia and the Llyn Peninsula. A lively event village, great support and a b..

Explore Gower's wild coast on 7 November 2026 with 10K, half marathon, marathon and ultra trail options across cliffs, dunes, woodland and beaches. Expect tough terrain, stunning views and a friendly post race gathering.

Run scenic trails in the Brecon Beacons at The Beacons Ultra, Marathon and Half in Talybont on Usk on 7 November 2026. Pick 49 mile, 26 mile or 13 mile routes over mountain, canal and road for a true autumn challenge.

Take on the Slate Trail Ultra in Snowdonia from 14 to 15 November 2026, with 80 km or 147 km routes that traverse dramatic coastal and mountain trails. Marked aid stations and UTMB points make this a true test of endurance.

Run through the woodlands of Margam Country Park on fully marked trails with GPS routes available for a half marathon, 10k or 5k. Enjoy scenic climbs, included parking and a finishers medal in a friendly Trail Revolution event.

Run the Trail by Torchlight in Llangollen: an 8 km fell race over scenic starlit moor with about 244 m ascent. Bring a head torch and enjoy a lively night race open to runners aged 16 and over.

Enjoy a festive trail half marathon at Bridgend with muddy hills, technical forest descents and scenic road views. Dress up for the fancy dress prize and celebrate with mince pies, hot drinks and a bespoke medal at the finish.