Trail Running Calendar Wales 2025-2026

Endurancelife Gower offers a range of trail running events, including a 10K, half marathon, marathon, and ultra marathon, all set in the stunning natural beauty of Gower, the UK's first Area of Outstanding Natural Beauty. Participants can enjoy breathtaking views of cliff tops, woodlands, sand dunes..

The Beacons Ultra is a thrilling running event featuring three race distances: a 49-mile ultra, a 26-mile marathon, and a 13-mile half marathon. Set in the picturesque town of Talybont-On-Usk, nestled in the Brecon Beacons, the event showcases a mix of trails, mountains, canals, and roads. Participa..

The Anglesey Trail Half Marathon and 10K is a scenic running event held in Newborough Forest, North Wales, showcasing the stunning landscapes of Anglesey. Participants can choose between a half marathon (21.1 km) and a 10K race, both featuring picturesque trails that include forest paths and views o..

The Margam Trail Races, scheduled for November 15, 2025, invite participants to explore the scenic trails of Margam Park during the autumn season. The event features three race distances: a half marathon (21.1km), a 10km race, and a 5km fun run, each designed to challenge runners of all levels. The ..

Dusk Till Dawn The Winter Edition is an exciting running event organized by Mad Running Junkies, set in the scenic Bridgend area of South Wales. Participants will tackle three 10-mile routes over a 12-hour period, starting at dusk and finishing at dawn. This unique challenge, a longer and more thril..

The Alyn Waters Winter Trails event offers a fantastic opportunity for trail running enthusiasts of all abilities to participate in 5k and 10k courses in a scenic country park. The courses are fully marked and marshalled, ensuring a safe and enjoyable experience for all participants. With no time li..

The Winter Celtic Trail Races, taking place in December 2025, offer a thrilling trail running experience across three distances: a 50k ultra, a full marathon, and a half marathon. Set in the stunning landscapes of Afan Forest and the Rhigos mountain range, participants will navigate ancient Celtic t..

The Nightmare Before Xmas Trail ½ Marathon is an exciting and challenging running event set to take place at the Bridgend Miniature Railway Centre. Participants will tackle a mixed terrain course that includes an 8-mile section known as The Hateful Eight, followed by an additional grueling 5 miles f..

The MTC Gelert is a challenging 47-mile ultra marathon that takes place as part of the Mount to Coast End to End Challenge Series. The race starts in Barmouth and follows the scenic National Cycle Route 8 to Llanidloes. It is also the third day of the CYMRUN, a six-day event covering various unique ..

The MTC Afanc is a challenging ultra marathon event covering approximately 39.8 miles along the scenic National Cycle Route 8, from Glasbury to Merthyr Tydfil. Scheduled for April 18, 2026, it is part of the Mount to Coast End to End Challenge Series and serves as Day 5 of the CYMRUN, a six-day endu..

The MTC Y Draig Goch is a challenging ultra-running event set for April 19, 2026, covering a distance of 47 miles. It is part of the Mount to Coast End to End Challenge Series and takes participants along the scenic National Cycle Route 8, starting from Travelodge in Merthyr Tydfil and finishing at ..