Trail Running calendar near Mortimer Common 2025-2026

Running Tribe Races take place in Chalfont St Peter, Buckinghamshire, at two locations: Chalfont Park Sports Club and Chalfont St. Peter Community Centre. The event offers flexible distances ranging from 7k up to an ultra marathon, with looped courses of 7k, 10k, or 10.8k that allow participants to..

The Epping Forest Wildwood Trail Series offers a scenic half marathon and 10K trail run set in the heart of Epping Forest near London. Scheduled for October 25, 2025, the event showcases the vibrant autumn colors and ancient woodland. Runners navigate a varied course featuring well-maintained paths,..

The Beachy Head Marathon is one of the UK's largest off-road marathons, held in the scenic South Downs National Park near Eastbourne. Formerly known as the Seven Sisters Marathon, it offers a challenging and picturesque route starting and finishing at Eastbourne Seafront along the South Downs Way. T..

The Thames Trail Ultra is a challenging 47-mile point-to-point ultra-marathon along England’s longest river, the Thames. Starting near Oxford in Iffley and finishing in Henley-on-Thames, the course follows the scenic Thames Path and Ridgeway National Trails, featuring a mix of cross-country trails,..

The Blackwater Marathon is an annual event held at Drapers Farm Sports Club in Heybridge, Essex. Celebrating its 25th edition in 2025, the marathon features a circular route on the north side of the River Blackwater estuary, combining cross-country footpaths and seawall sections. Participants can ch..

The Thames Path Trail Run takes place at Windsor Racecourse, offering scenic routes along the picturesque Thames River with stunning views of the river and countryside. Participants can choose between two distances: 21km and 16km, both featuring gentle elevation gains (+66m and +50m respectively). T..

The Stort30 Ultra is a scenic 30-mile ultra marathon held on the border of Hertfordshire and Essex, starting and finishing at the Hockerill Sports and Social Club in Bishop's Stortford. The course follows a flat, fast out-and-back route along the River Stort and Lee navigation, primarily on grassy t..

The Irchester Spooktacular is a Halloween-themed night-time running event held at Irchester Country Park. It features two distances: a 5k race and a 2k Family Fun Run, both set on fully marked woodland trails and tracks. Participants are encouraged to wear fancy dress, with prizes awarded for the be..

The Plough and Harroween is a 5-mile night trail run held in Litlington, East Sussex, starting and finishing at The Plough & Harrow pub. The self-navigated course, run in reverse of the Friston Forest 5 route, traverses countryside terrain including forest, farm tracks, and downlands. Participants m..

The Guided Run - Petersfield 10k will take place in Petersfield on Saturday 1 November 2025. You can run 10 kilometers.

The Brewery Trail Run is a 10km (6 miles) trail running event held in the scenic Chiltern Hills near Tring, just 40 minutes northwest of London. Suitable for all abilities, the course features some hills and offers a relaxed, guided experience with qualified run leaders. After the run, participants..

The Fireworks 50 is a 50-mile running event organized by Zig Zag Running, held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Now in its fourth year, this unique race takes place on a traffic-free athletics track, offering runners a safe and controlled environment. Limited to 50 pa..

The Chiltern Ridge Winter 50K is a scenic autumn/winter trail running event held in Berkhamsted, UK. This ultra-distance race covers a challenging 50 kilometers with over 800 meters of elevation, following a single-loop course through the heart of the Chilterns. Runners traverse woodland trails, Ber..

Brutal - Halloween @ Hogmoor is an annual evening running event held at Hogmoor, a former military area now used for recreation. The event features a kids race with a 3.3K loop, and for participants aged 13 and over, options to run 6.6K (2 laps) or 10K (3 laps). The course includes short sandy hills..

The ZigZag Catherine Wheel Canter is a unique running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants can choose from various distances including 5k, 10k, half marathon, full marathon, 50k ultra, or a 6-hour challenge, all run on a traffic-free 400-meter athl..

The Leigh-on-Sea 10k is an after-dark, multi-terrain running event held in Leigh-on-Sea, featuring both 10k and 5k distances, including a juniors' 5k for ages 11-15. Scheduled for early November, the race offers a spooky Halloween-themed atmosphere with mandatory head or body torches and optional fa..

The Wendover Woods Marathon, Half Marathon & 10k is a scenic autumn trail running event held in Wendover Woods, Buckinghamshire. The race features multi-terrain, hilly courses with significant climbs, making it a challenging yet rewarding experience for novices, seasoned runners, and marathoners see..

The Dorset Hillfort Ultra is a scenic 38-mile running event set in the picturesque West Dorset, featuring a challenging course with approximately 1,300 meters of ascent. Participants will traverse from one ancient hillfort to another, enjoying stunning views of Lyme Bay and the Jurassic Coast. The r..

The Sphinx AC Coombe 8 is a challenging multi-terrain running event held at the historic Coombe Abbey on the outskirts of Coventry. The main race covers 8 miles, featuring a mix of wooded trails and undulating farmland, with an alternative 8km (5-mile) route available. The event offers a friendly at..

Tunnel Vision in Market Harborough is a unique 5-mile out-and-back running event featuring both a Night Run and a Dawn Run. The course includes a memorable passage through the 422-meter-long Oxendon Tunnel, an old railway tunnel that is pitch black but mood-lit for the race, requiring runners to use..