Trail Running calendar near Caernarfon 2025-2026

The Brynkinalt Running Festival, held on the private Brynkinalt Estate in Wrexham, offers trail running and canicross events over approximately 5k and 10k distances. The festival welcomes participants of all ages and abilities, providing a challenging course featuring a mix of fast footpaths, grassy..

The Nant Yr Arian Silver Trail Races take place in the scenic Cambrian Mountains, offering a choice of challenging and varied terrain for trail runners. Participants can choose between a Half Marathon and a 10km race, both suitable for beginners and experienced runners, with no cut-off time. The eve..

The Beast of the Blacks is a challenging trail running event held in the stunning Black Mountains of Wales, starting and finishing at Llanbedr Hall near Crickhowell. Offering 10, 20, and 40-mile distances, the course features marked routes with significant elevation gains (up to 9,106 feet for the 4..

The Moel Famau Easter 'Piece of String' Race is a fun and inclusive outdoor event held at the start of the Easter holidays. Participants can enjoy a scenic run on the region's popular hill, with routes ranging from 6 to 12 kilometers that are well-marked and marshalled. The race features hilly terra..

The Summit 2 Sea - Offa's Dyke Half Marathon is a challenging spring race covering approximately 13.8 miles from the summit of Moel y Parc to the coast at Prestatyn. Runners will ascend over 2,450 feet, starting at over 1,300 feet above sea level, along the scenic Offa's Dyke National Trail. The cou..

The Llangollen Fell Race, hosted by Run Free Fell Runners in North Wales, is a popular annual event featuring two scenic routes: a challenging 17-mile course with 3000ft of elevation and a shorter 10-mile route ascending 1969ft. Both start at Dinas Bran Leisure Centre and offer stunning views of Tre..

The MTC Gelert is a challenging 47-mile ultra marathon held in Wales, running from Barmouth to Llanidloes along the scenic National Cycle Route 8. It forms Day 3 of the six-day CYMRUN, part of the Mount to Coast End to End Challenge Series, which celebrates Welsh myths and legends. The route feature..

The Chester Ultra 100 is a challenging 102-mile ultramarathon held in Chester, UK, featuring 1590 meters of elevation gain. The well-marked course traverses scenic trails including the Sandstone Trail, Marches Way along the River Dee, Helsby Hill, Beeston Castle, Delamere Forest, and the Bridgewater..

The Shropshire Way 80K Festival is a challenging trail running and walking event held in the scenic Shropshire Hills, England. Taking place in early April, it attracts hundreds of participants who experience the area's rich food, history, and landscape. The festival features multiple distances: the..

The North Wales 50km & 100km is a scenic ultramarathon event along the North Welsh coastline, starting at the Nova Centre in Prestatyn and finishing in Bangor. The 50km route covers 53.8km with 2,700ft of ascent, reaching the beach at West Shore, Llandudno. The 100km course follows the entire North..

The Welsh 3000's Ultra Run is a guided mountain running event held in Snowdonia, North Wales, covering the classic 15 peaks over 3,000 feet. Participants traverse approximately 30 miles (50 km) with 4,000 meters of elevation gain across the Snowdon, Carneddau, and Glyderau ranges, including the chal..

The Sheinton Steeplchase is a 5.3 km cross-country race held near Sheinton Church by Cressage in the West Midlands. Featuring a total ascent of 100 meters, it offers a challenging yet accessible course that is not a traditional fell race but still highly regarded for its competitive and enjoyable na..

24 Hours South - The Offa's Dyke Ultra is a challenging 24-hour endurance event starting from Prestatyn on the North Wales coast, following the Offa's Dyke National Trail southwards. Participants, either solo or in teams of 2 to 4, aim to cover as much distance as possible along this scenic and dema..

Ultra Wales 50 is a challenging 51-mile mountain and trail race held in Coed-y-Brenin, Southern Snowdonia, Wales. Featuring 2,898 meters of ascent, the course includes iconic landmarks such as Cadair Idris Penygader (893m), Rhinog Fach (712m), Dolgellau, the Barmouth estuary, and the expansive Coed-..

The Welsh 3000's Ultra Run is a guided mountain running event held in Snowdonia, North Wales, covering the classic 15 peaks over 3,000 feet. Participants traverse approximately 30 miles (50 km) with 4,000 meters of elevation gain across the Snowdon, Carneddau, and Glyderau ranges, including the chal..

The Severn Challenge is a grueling 220-mile, five-day multistage ultra marathon in the UK, following the longest riverside path from the source of the River Severn in Wales to its mouth. The race is divided into five unique stages ranging from 26 to 59 miles each, with a total ascent of over 3,000 m..

The MTC Hafren Ultra is a challenging 27-mile point-to-point ultra marathon held in Wales, starting at Rhyd-y-benwch picnic area and finishing at the Mid Wales Arts Centre in Caersws. The race begins with a demanding four-mile mountain trek up Plynlimon, known as Wales' most dangerous mountain due t..

The MTC Severn Plod Ultra is a challenging 48-mile point-to-point ultra marathon starting at the Mid Wales Art Centre in Maesmawr and finishing in Shrewsbury. The scenic route passes through diverse landscapes including Holly Bush, Rhyd-y-felin, Dolerw Park, the Gorsedd stone circle, Montgomery Cana..

The MTC Severn Path Ultra is a 59-mile point-to-point ultra marathon starting in Shrewsbury and finishing in Worcester, UK. The mostly flat course follows the River Severn, passing scenic landmarks such as Ironbridge, Jackfield, and Coalport. Runners experience stunning riverside views through towns..

The XTERRA Snowdonia Trail Marathon Eryri is a premier trail running event held in the stunning Eryri (Snowdonia) National Park, North Wales, starting and finishing in the adventure town of Llanberis. Scheduled for July 11, 2026, it offers four race distances: Ultra Marathon (57 km), Marathon (27.3..