Trail Running calendar near Llanberis 2025-2026

We have found 90 Trailruns within 80 miles of Llanberis. See below where and when you can find the races.

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..

July 2026

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..

Snowdon24, also known as Black Diamond Yr Wyddfa, is a 24-hour ultra trail running event held in Llanberis, Eryri (Snowdonia) National Park, Wales. Participants challenge themselves to ascend and descend Yr Wyddfa (Snowdon), the highest mountain in England and Wales at 1,085 meters (3,560 feet), as..

September 2026

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 Carneddau, Glyderau, and Snowdon ranges, including the chal..

July 2027

The MTC Blue Caps is a 36-mile ultra marathon held in England, forming Day 4 of the 13-day Mount to Coast Albion End to End Challenge. The race starts at Premier Inn Wigan North and finishes at The Swan in Tarporley, following the same route as the MTC JOGLE event but with shorter daily distances. T..