Trail Running calendar near Gloucestershire 2025-2026

The Celtic Trail Races, held annually at Dare Valley Country Park in Aberdare, South Wales, offer a festive trail running experience with three distances: a 34-mile ultra, a 26-mile marathon, and a 13-mile half marathon. The courses traverse rugged, ancient Celtic tracks through Afan Forest and the..

The Salcey Forest Christmas 10K, 5K, and Junior Fun Run is a festive trail running event held in Salcey Forest, Northamptonshire. Set amidst beautiful, tree-lined woodland trails, the course features mixed terrain that is virtually flat but can be muddy, making it suitable for both novice and experi..

The Nightmare Before Xmas Trail ½ Marathon is a challenging running event set to take place at the Bridgend Miniature Railway Centre. Participants will tackle a mixed terrain course that includes an 8-mile section known as The Hateful Eight, followed by an additional 5 miles filled with obstacles li..

The A Christmas Carol Bobble Hat Run, organized by Saturn Too, takes place in the scenic Dare Valley Country Park, Aberdare, Wales. This inclusive event welcomes participants of all abilities, including walkers, and features a 7-hour time challenge where runners can choose their distance, starting f..

The Slow and Dirty is a festive-themed 19-kilometer trail race held in Sturminster Newton, Dorset, following a level, hard-surfaced route along a former railway line known historically as the "Slow and Dirty" due to its slow trains. The course offers scenic views along the River Stour valley, passin..

The Winter Woolly 10km is a popular trail running event held annually on December 24th at Elstree School in Upper Woolhampton, Berkshire. Now in its sixth year, the race features a scenic multi-terrain course covering 10 kilometers with 80% off-road paths, including lanes, footpaths, trails, woodlan..

The Plain Crazy Winter 12.5 Mile run is a challenging event set in scenic and potentially snowy conditions, taking place on December 28, 2025. Participants can expect a hilly course that tests their endurance, with a 3.5-hour cut-off time. The event supports The Royal British Legion Poppy Appeal and..

The Country to Capital Ultra is a renowned 43-mile ultra marathon starting in Wendover and finishing at Little Venice, London. As the official opener of the UK ultra running season, it attracts runners worldwide to tackle a scenic and challenging course that includes Buckinghamshire countryside, cro..

The Northampton 10K is a well-organized running event held at Northampton Racecourse Park, featuring a 2.2 km start followed by three laps around the racecourse. The course is accurately measured and takes place on pathway terrain, offering water stations and first aid support. Participants receive..

The Cardiff Trail 10k is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for January 18, 2026, this newly introduced race offers participants a unique blend of competition and natural beauty, making it an ideal choice for both experienced runners and newcomers...

The Spice Up Your Run event in Aberdare, Wales, invites participants to enjoy a fun and inclusive running experience while celebrating the iconic Spice Girls. Set in the scenic Dare Valley Country Park, this event allows runners and walkers of all abilities to complete a minimum distance of 5km with..

The Holly Challenge is an exciting running event that marks the beginning of the racing year, offering participants a choice of distances: 5K, 10K, Half Marathon, or Marathon. Set in the picturesque Lightmoor Nature Reserve in Telford, this event is perfect for those preparing for spring marathons...

The Stonehenge Stomp is a popular walking and running event organized by the City of Salisbury Athletics & Running Club, held near the iconic Stonehenge site. Participants can choose from fully marked trail distances of 5 km (family-friendly), 10 km, 20 km, 30 km, or 40 km, all offering scenic views..

The Moors Valley Wildwood Trail Series Half Marathon & 10K is a trail running event held at Moors Valley Country Park & Forest in Dorset. Scheduled for January 25, 2026, it offers two distances: a half marathon consisting of two laps and a 10K single lap. The course features scenic woodland trails w..

The Icing On The Cake is a thrilling trail running event set in the picturesque Shropshire Hills, featuring both half (13.1 miles) and full (26.2 miles) marathon options. Scheduled for February 1, 2025, participants will navigate a scenic route that showcases the rugged beauty of the area, starting..

The Squirrel Challenge is a 6-hour running event held at Daventry Country Park, United Kingdom. Participants run multiple laps of a 3.3-mile off-road loop featuring crushed stone paths through tranquil woods, open grassland, and alongside calming waters. The course is mostly firm and suitable for al..

The Westonbirt Arboretum Winter Night Race is an exciting running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between 5km and 10km routes, which showcase the arboretum's diverse landscapes and solid terrain, providing a unique blend of tra..

The Westonbirt Arboretum Winter Day Race is a scenic running event set in the stunning National Arboretum, featuring over 2,500 tree species. Participants can choose between a 5km or 10km race, with routes that showcase the beauty and diversity of the arboretum's landscape. The event is designed to..

XTERRA Matterley is an off-road sporting event held at the scenic Matterley Basin in Hampshire, United Kingdom. Scheduled for February 14-15, 2026, it offers a variety of race formats including duathlons and trail runs suitable for athletes of all levels. The duathlon features full and sprint distan..

The Dalwood 3 Hills is a popular multi-terrain running event held in Dalwood, near Axminster, Devon. Returning in 2026, it offers three distances: a challenging 10-mile course featuring hills, mud, and river crossings; a 5km "Dalwood Dash" with similar terrain; and a new 3km "Dalwood Doddle" fun run..