Trail Running calendar near Tywyn 2025-2026

We have found 142 Trailruns within 80 miles of Tywyn. See below where and when you can find the races.

Loggerheads Autumn Trails is an exciting running event featuring longer versions of popular 5k and 10k races, set in the scenic Loggerheads Country Park. Participants can choose from a 14k race, which consists of two loops of a 7k course, or a 7k Canicross discipline, welcoming runners of all abilit..

The Scare Bear Run in Aberdare, hosted by Saturn Running, is a unique 7-hour time challenge event set in the scenic Dare Valley Country Park. Participants can choose their distance, starting from a minimum of 3km, with laps of approximately 4.37 miles (7km) on well-maintained paths offering beautifu..

The Brenig Way 50K Trail Race is a challenging ultramarathon that covers 50 kilometers through remote upland scenery in Wales. Starting in Corwen, participants follow a marked footpath along country lanes, forest tracks, and riverside paths, crossing notable landmarks such as Clocaenog Forest and Ll..

The Black Beacon Mountain Trail Races are a series of challenging long-distance mountain trail races held in South Wales, crossing the Black Mountains and Bannau Brycheiniog (Brecon Beacons) National Parks. Starting from Hay on Wye, the event offers four race distances: a 100-mile ultramarathon with..

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November 2025

The November Nightmare is an exciting running event taking place over eight days in Telford, Shropshire, celebrating its 10th year. Participants can choose from various distances each day, including 8 miles, a half marathon (approximately 16 miles), or a full marathon. Runners can opt to compete in..

The OTT Ultra Marathon is a challenging 30-mile trail race set in the scenic Brecon Beacons, South Wales. Starting in Merthyr Tydfil, the course follows the Taff Trail and riverside paths before ascending to Pen y Fan, the highest peak in South Wales at 886 meters. Runners then descend via Jacobs La..

The Delamere Forest 42k and 21k trail races, organized by RunThrough UK, take place in the scenic Delamere Forest near Northwich, Cheshire, on November 2, 2025. The marathon consists of two laps of the half marathon route, featuring shaded forest trails, views of Blakemere Moss, the Sandstone Trail,..

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The Twmbarlwm Terror is a challenging multi-terrain race organized by Fairwater Runners Cwmbran, held near Risca, South Wales. Covering approximately 7 miles, the scenic course traverses footpaths, open fields, country lanes, and woodland, ascending to the Twmbarlwm peak with a total elevation gain..

Endurancelife Gower offers a series of trail running events set in the stunning Gower Peninsula, the UK's first designated Area of Outstanding Natural Beauty. Participants can choose from 10K, half marathon, marathon, and ultra distances, all featuring challenging terrain including grass, moor, beac..

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The Beacons Ultra is a challenging trail running event held in November in Talybont-on-Usk, Powys, at the foothills of the Brecon Beacons. It offers three race distances: a 49-mile ultra featuring two loops of a 23-mile course with an out-and-back climb to Pen y Fan, a 26-mile marathon covering a si..

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The Poole Half Marathon MoRun is a vibrant running event held at Upton Country Park, Poole. It offers multiple distances including a 1.5k Mini MoRun for kids, 5k, 10k, and a half marathon, catering to all ages and abilities. The course is mostly off-road with a mix of trails and paths, featuring und..

The Anglesey Trail Half Marathon & 10k is a scenic trail running event held in Newborough Forest and Ynys Llanddwyn, Anglesey, North Wales. The race offers two distances: a 10k and a half marathon (21.1 km), featuring diverse terrain including forest trails, sandy paths, and single-track routes. Par..

DirtRun In The Dark is an off-road running event held at The Wyre Forest, Callow Hill Visitor Centre. Participants tackle a 10km course consisting of two laps around forest tracks and trails, all run in the dark, making torches compulsory. The race welcomes runners aged 14 and above and allows canic..

The Trails & Tarmac 12hr Backyard Ultra is a challenging endurance running event held near Crickhowell in Powys, UK, set in the scenic Black Mountains. The race features a 4.2-mile loop combining 50% trail and 50% tarmac, with mostly flat terrain, one gradual climb, and a short steep section, design..

The Margam Trail Races take place at Margam Country Park and Forest, offering runners a scenic and well-marked trail running experience. The event features three distances: a half marathon (21.1 km with 750m elevation), a 10k (10.2 km with 420m elevation), and a 5k (5.1 km with 140m elevation). The..

The Liverpool Half Marathon MoRun is a charity running event held at Croxteth Park, Liverpool, supporting the Movember Foundation to raise awareness for men's health issues. Participants can choose from distances including a 1.5k Mini MoRun, 5k, 10k, and the Half Marathon. The course is a flat mix o..

The Slate Trail Ultra, organized by APEX Running, is a challenging trail running event set in the scenic Snowdonia region of Wales. It offers two main distances: a 145km (90mi) ultra with 3,900m+ elevation gain and an 88km (55mi) Ultra Tour of the Quarries with 2,700m+ elevation gain. The course fol..

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Dusk Till Dawn The Winter Edition, also known as Dawn Two Dusk: Day Light Robery, is a challenging 12-hour running event held at Bridgend Miniature Railway in South Wales. Participants tackle three different 10-mile mixed terrain routes, including hills, technical downhill forestry trails, and some..

The Callow Fell Race, organized by Mercia Fell Runners, is a challenging event that has transitioned from a summer to a winter series race. Covering a distance of 8.1 km with a total ascent of 762 meters, it is recognized as one of the toughest races in Shropshire. The course features steep climbs a..

The Guided Trail Run in Dolwyddelan offers participants a scenic 10km route beginning in the charming village. The run features a leisurely start along the river, followed by a climb to Ty Mawr, where runners can enjoy stunning views of the village below. The course winds through beautiful forested..