Trail Running Calendar South East (England) 2025-2026

The Dinton 5km & 10km Summer Series, hosted by Barnes Fitness, is a popular running event taking place at Dinton Pastures Country Park. Celebrating its 13th year, the series features races on the third Thursday of May, June, July, and the second Thursday in August. Participants can choose between a..

The Maverick X Series North Downs 2025 is an exciting trail running event set in the picturesque Surrey countryside, taking place at Cranleigh Showground. Participants can choose from four routes: Ultra (52 km), Long (43 km), Middle (22 km), and Short (11 km), each offering a unique blend of scenic..

The Centurion North Downs Way 50 is a challenging 50-mile point-to-point ultramarathon taking place along the scenic North Downs Way National Trail, from Farnham in Surrey to Knockholt Pound, Greater London. With a total elevation gain of 5,600 feet, the course features notable climbs, including Box..

The Compton Marathon & 16 Mile Challenge, organized by the Compton Harriers Running Club, is a popular running event held in Compton, Berkshire. Participants can choose between a full marathon and a 16-mile challenge, both set against scenic backdrops. The event promotes community engagement and enc..

The Ridge Off Roader is a challenging mixed terrain race held in the picturesque Chiltern Hills, now celebrating its 12th year. Participants can choose between a 10k route and a half marathon, both of which are well-marked and marshaled. The event also features a 1k race for local children.As a char..

The Chiltern Valley 10km is a scenic trail run set in the picturesque Hambleden Valley, hosted by the Chiltern Valley Winery & Brewery. This multi-terrain course features a mix of woodland paths, single track footpaths, and country lanes, making it suitable for runners of all abilities, with a gener..

The Greensand Way Ultra Run is a guided 30-mile trail run that showcases the scenic beauty of the North Downs Way and the Greensand Way, starting and finishing at West Hanger near Guildford. This event is designed for both seasoned runners and first-time ultra runners, providing an opportunity to le..

The 10Bay Challenge is a unique running event set on the picturesque beaches of Thanet in Kent, scheduled for May 18, 2025. Participants can choose between two distances: the full 10Bay Challenge, approximately 15 miles, or the shorter 4Bay 10k. The race takes place at low tide, allowing runners to..

The Reigate Priory Park 10K Charity Fun Run is an exciting event set in the beautiful surroundings of Reigate Park, offering a challenging yet enjoyable experience for runners of all levels. Participants can expect a gently undulating, accurately measured course amidst lush greenery, promoting both..

The Pulborough Vineyards Run is an exciting running event set in the picturesque West Sussex countryside, featuring stunning views of the South Downs. Participants can choose from various distances ranging from 5 km to 20 km, with a fun run option up to a half marathon. The course is primarily off-r..

The Guided Spring Marathon - Winchester will take place in Winchester on Sunday 18 May 2025. You can run 26 miles.

The UK Ultra South Downs event features five distinct races set in the picturesque South Downs National Park in South East England. Designed for runners and walkers of all abilities, the courses are point-to-point, showcasing stunning views along non-technical trails. Participants will experience a..

The Fox Trail is a premier trail running event set in the scenic Surrey countryside, offering participants a quintessentially British experience. Scheduled for May 24, 2025, the event features three race distances: 20K, 41K, and 62K, all culminating at Burys Field in Godalming. The race is designed..

The Northiam 8.5km Trail Race is a scenic running event set to take place in Icklesham, featuring over 62% of the course on trails. Participants can expect stunning views and the chance to win prizes for the top male and female finishers. The race is fully marked and marshalled, with amenities inclu..

The Seven Sisters Half Marathon is a scenic trail race set in the South Downs National Park, offering a stunning point-to-point route. Ideal for both novice and experienced runners, this 13.1-mile race begins in Eastbourne and features a mix of grass trails, farm tracks, and forest paths, with a tot..

The ATW Chiltern Half Marathon & 10K is an exciting running event set in the picturesque Chiltern Hills, known for its stunning landscapes and challenging terrain. Participants can choose between a half marathon or a 10K trail run, making it suitable for both seasoned runners and those looking to ex..

Harewood 24 is an exhilarating 24-hour endurance event designed for both solo runners and teams, set in a stunning off-road forest environment. Participants can tackle 5-mile loops, either individually or in pairs of up to eight members. The event offers a unique challenge, allowing solo runners to..

The Beat the Sunset 50km is a multi-terrain ultra marathon held in the Thames Valley, designed for both newcomers and experienced runners. Participants aim to complete the course before sunset, with a generous cut-off time of 9 hours. The event features a scenic route that includes the Thames Path,..

The Three Castles 50km Ultra Marathon invites participants to run along the scenic River Medway, passing three historic castles and charming villages. This event is designed for both seasoned ultra runners and newcomers, featuring a flat course with well-marked trails and multiple aid stations. Runn..

The Oliver Fisher 10K & 5K is an exciting running event taking place at Milton Creek Country Park in Sittingbourne, Kent, on June 1, 2025. This race celebrates the 40th anniversary of the Oliver Fisher Special Care Baby Trust, aiming to raise essential funds for the Neonatal Unit at Medway Maritime..