Trail Running calendar near Dyffryn Nantlle 2024-2025

We have found 84 Trailruns within 80 miles of Dyffryn Nantlle. See below where and when you can find the races.

The Black Mountains 50 is an exhilarating running event set in the stunning landscapes of South Wales, featuring multiple distances: 50 miles, 32 miles, a marathon, and a half marathon. Participants will navigate high trails, valleys, and ancient forests, encountering breathtaking views, waterfalls,..

The Ultra Wales 50 is a challenging 50-mile mountain and trail race set in the stunning landscapes of Southern Snowdonia, featuring significant elevation gains of 2898 meters. Scheduled for June 21, 2025, this event will take participants through iconic locations such as Cadair Idris and the Barmout..

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The Skyrun Eryri, also known as the Snowdon Skyrace, is a premier skyrunning event held in the stunning Eryri/Snowdonia region of Wales. This unique weekend features multiple race distances, including 16km, 27km, 38km, and 52km, catering to various skill levels and preferences. Participants can expe..

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The Lake Vyrnwy Running Festival is a vibrant event that celebrates trail running, attracting participants of all ages and abilities. Scheduled for June 28-29, 2025, the festival features a 5k race on Saturday evening and an 11k race on Sunday morning, both set against the stunning backdrop of Lake ..

The Welsh 3000's Ultra Run is an exhilarating guided mountain running event that takes participants over 15 peaks in Snowdonia, North Wales, each exceeding 3,000 feet. Covering approximately 30 miles (50 km) with a height gain of 4,000 meters, this challenging adventure is designed for determined ru..

July 2025

The XTERRA Snowdonia Trail Marathon Eryri, taking place in July 2025, is a premier event in the XTERRA Trail Run World Series, set in the breathtaking landscapes of Wales. This inclusive trail festival features various race distances, including the Half and Full Marathon World Championships, attract..

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Snowdon24 is an ultra trail running event set at the iconic Yr Wyddfa (Snowdon), the highest mountain in Wales and England. Participants can challenge themselves individually or as part of a team to ascend and descend the mountain as many times as possible within a 24-hour period. The event features..

UTMB Index ITRA Points

The LT-100 + LT-50 Mile Ultras is an exhilarating trail running event set in the stunning landscapes of the Black Mountains and Brecon Beacons National Park in South Wales. Participants can choose between a challenging 100-mile ultra or two separate 50-mile routes, each offering breathtaking views a..

"Snowdonia in a Day" is an exhilarating challenge event that invites participants to traverse the stunning Snowdonia National Park in a single day. Covering a distance of 60km (40 miles) with a significant elevation gain of 4,500m, the route takes runners over 24 mountains, starting in Conwy and fin..

The Welsh 3000 Challenge (14 Peaks) is a premier mountain running and walking event in the UK, set in the stunning Snowdonia National Park. Participants can choose between a 20-hour challenge or a two-day challenge, both of which involve summiting all 14 peaks over 3000ft, including Snowdon and Crib..

The Paddy Buckley Round is a challenging running event set in Northern Snowdonia, covering over 100km and featuring approximately 9,000m of ascent and descent across 47 mountain peaks. This guided experience takes place over three days, with participants running up to 40km daily in small groups, led..

Ultra X Wales is a multi-stage ultra-marathon event set in the stunning landscapes of southern Snowdonia, Wales. Participants can choose from four race options: Ultra X 110, Ultra X 60, Ultra X 50, and Ultra X 25, covering distances from 25km to 110km over two days. The course features looped routes..

August 2025

The EDDUM is an exciting 50-mile trail running event set to take place around the scenic Epynt Way, showcasing the stunning landscapes of Wales. Participants will traverse a mostly untouched permissive path that loops around the Sennybridge Training Area, the UK's third-largest military training gro..

Ogwen | Yr Helgi Du 2025 is a thrilling trail running event set in the stunning Eryri's Ogwen Valley, featuring three challenging distances: 10K, 25K, and 40K. Participants will experience breathtaking views while navigating some of the highest mountains in England and Wales, including the Carneddau..

UTMB Index ITRA Points

The Moel Famau 24 event is a unique running challenge set on the scenic Clwydian Hill, featuring a 7.2km loop with a 500m ascent. Participants can choose to run solo or in teams for either 12 or 24 hours, with no cut-off time or minimum laps required. The event promotes a relaxed atmosphere, allowin..

The Leeds & Liverpool Canal 130 Mile Race (LLCR) is a non-stop ultra-running event taking place along the scenic Leeds & Liverpool Canal, from Liverpool to Leeds. Scheduled for August 23, 2025, this race is open to participants aged 20 and over, with options for supported and unsupported entries. Th..

September 2025

The Montane Dragon's Back Race® is a prestigious six-day mountain running event held in September 2025, covering a challenging distance of 380km with an elevation gain of 17,400m. Starting at Conwy Castle and finishing at Cardiff Castle, this race is renowned as one of the toughest in the world. Par..

The Hawarden Estate Trail 10k is an exciting running event that offers participants a scenic and varied course, featuring forest tracks, grassy fields, and country lanes. The race is designed to accommodate both beginner trail runners and more competitive athletes, making it an inclusive experience ..

The Yr Wyddfa Ultra 100 is an exhilarating 100-mile ultramarathon set in the stunning Snowdonia National Park, featuring a challenging elevation gain of 5788 meters. Scheduled for September 6, 2025, the event accommodates 250 participants and includes multiple checkpoints offering essential support ..

The Yr Wyddfa Ultra 50 is an exhilarating ultra-running event set in the stunning Snowdonia National Park, specifically around the village of Betws-y-Coed. Covering a challenging distance of 45 miles with an elevation gain of 3,254 meters, participants will navigate through breathtaking mountain tra..