Trail Running calendar near Trawsfynydd 2025-2026

We have found 115 Trailruns within 80 miles of Trawsfynydd. See below where and when you can find the races.

Defeat Delamere is a running event held at Delamere Forest, Frodsham, featuring multiple race distances including 5k, 10k, 16k, and a mini-miler for children aged 3 and above. The course offers a scenic and challenging route through the forest with varied terrain, including downhill stretches and st..

The Trails & Tarmac Backyard Ultra, organized by Limitless Trails, takes place near Crickhowell in the Black Mountains, Powys, UK. This endurance event features a 4.2-mile loop combining equal parts trail and tarmac, with mostly flat terrain, one gradual climb, and a short steep section, allowing fo..

The Abersoch Half Marathon is a scenic 13.1-mile race held in the charming seaside village of Abersoch on the Llyn Peninsula, North Wales. The predominantly road-based course passes through the villages of Llanengan, Llangian, and Sarn Bach, culminating in an exhilarating final kilometer along Abers..

The The Brutal Extreme Triathlon will take place in Llanberis on Saturday 20 September 2025.

The Brown Clee Burn is a challenging 11-kilometer multi-terrain running event held in Stoke St Milborough, UK. Featuring steep technical climbs, long descents, and stunning views, the course offers a demanding yet rewarding experience for runners. The event starts and finishes at the village hall, w..

The Pumsaint Trail Half Marathon is a scenic and challenging race held in the beautiful Cothi Valley near Llanwrda, United Kingdom. Scheduled for September 21, 2025, the event features a hilly half marathon course that offers runners a rewarding trail experience. Alongside the half marathon, there i..

The Town to Tower 10K is an uphill race starting in the market town of Ruthin, North Wales, and finishing at the summit of Moel Famau, the highest point in the Clwydian Hills. This challenging 10-kilometer course ascends to the Jubilee Tower at over 550 meters above sea level, offering stunning view..

The Delamere Forest Wildwood Trail Series offers a scenic and challenging trail running event in Cheshire, featuring a Half Marathon and 10K race. Set within the picturesque Delamere Forest, the course includes dense woodlands, rolling trails, steep climbs, and muddy sections, providing a rewarding..

The Bridgeathon, organized by Preston, Fylde & Wyre Running, is a multi-distance running event held along the flat Lancaster Canal towpath in Bilsborrow, Preston, Lancashire. Participants can choose from 10K, half marathon, marathon, and ultra (32 miles) distances. The marathon route features 43 bri..

October 2025

The DirtRun Wyre Wizard Trail Half is a trail running event held at the Wyre Forest Visitor Centre near Kidderminster, UK. Participants can choose between a challenging 13-mile half marathon or a shorter 7.6-mile Super Seven route. The course winds through ancient woodland and scenic landscapes, off..

The Loop Ultra is a 32-mile (50 km) trail running event held in the remote Cambrian Mountains near Dolanog, Welshpool, Mid Wales. Starting and finishing at Camp Plas, a nature retreat offering eco-friendly camping and amenities, the course features marked trails, forest tracks, and ancient paths, pa..

The Breidden Hills Race, organized by Mercia Fell Runners, is an 11.5 km fell running event featuring a challenging total ascent of 790 meters. Held near Criggion Village Hall in the West Midlands, the race promotes safe and sustainable fell running. Entry is by pre-registration only, with an £8 fee..

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 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 Races, held in South Wales' Black Mountains and Brecon Beacons National Parks, offer four challenging trail running events: a 100-mile ultramarathon, a 50-mile ultramarathon, a 50km Ultra Bach, and a 21-mile trail race. The courses feature spectacular mountain scenery, incl..

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 Delamere Forest 21k and 42k trail races, organized by RunThrough UK, take place in the scenic Delamere Forest near Northwich, Cheshire, on November 2, 2025. The event offers a half marathon and a full marathon, with the marathon consisting of two laps of the half marathon course. Runners experie..

UTMB Index

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 Warrington Way is a 40-mile ultramarathon trail race starting and finishing in the Cheshire village of Lymm. The course circumnavigates Warrington in an anticlockwise direction, primarily on trails, footpaths, field crossings, and country lanes. The route is waymarked, but runners must carry map..

The Beacons Ultra, Marathon, and Half is a trail running event held in Talybont-on-Usk, Powys, at the foothills of the Brecon Beacons. It features three race distances: a challenging 49-mile ultra consisting of two loops plus an out-and-back to Pen y Fan, a 26-mile marathon following a single loop o..