Trail Running calendar near Hertfordshire 2025-2026

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 Richmond Park Marathon is a scenic 26.2-mile running event held in Richmond Park, featuring a challenging course that consists of three laps. The first lap is 12 miles, while the subsequent two laps follow the Tamsin trail, each measuring 7.1 miles. The race starts and finishes near Sheen Gate,..

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 atmosphere and a limit of 95 spaces. The course is primaril..

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 and country lanes, making it accessible for runners of all abilities, with a generous 2-hour cut-off time..

The Bluebell 5 is an annual running event organized by Pitsea Running Club in collaboration with the Essex Wildlife Trust, taking place on May 18, 2025. This five-mile off-road race offers participants a scenic journey through the picturesque Little Haven Nature Reserve, featuring vibrant bluebells,..

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

Zig Zag Farmmageddon is an exciting 100-mile running event taking place over two days at Hyde Hall Farm, Buntingford. Participants will tackle a 5.3k loop course within a 32-hour time frame, making it accessible for runners of all abilities. Each participant completing the 100-mile distance will rec..

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 and traverse stunning, non-technical trails, culminating at Eastbourne after crossing..

The Run Banham Zoo (5k) is an exciting running event set in the scenic grounds of Banham Zoo, where participants will encounter various animals along the route. This family-friendly race welcomes runners of all abilities and includes full-day access to the zoo for all entrants. Participants can choo..

The Grand Union Canal 145 Mile Race (GUCR) is a prestigious ultra-running event taking place along the Grand Union Canal Towpath from Gas Street Basin in Birmingham to Little Venice in London. Scheduled for May 24, 2025, this non-stop race welcomes participants aged 20 and over, with no prior qualif..

The London 2 Brighton Ultra Challenge is a premier endurance event that invites participants to traverse a scenic 100 km route from Richmond-Upon-Thames to Brighton. Scheduled for May 2025, the challenge accommodates various distances, including quarter, half, marathon, and full options, ensuring in..

The Fox Trail is a premier trail running event set in the scenic Surrey countryside, taking place on May 24, 2025. Participants can choose from three distances: 20K, 41K, and 62K, each offering a unique experience along the picturesque routes originally plotted by Richard Fox. The event culminates i..

The Grim Reaper Ultra Marathon is a multi-distance running event set in the picturesque Grimsthorpe Castle Estate in South Lincolnshire, scheduled for May 24-25, 2025. Participants can choose from four solo distances: 10, 40, 70, and 100 miles, along with team relay options for the longer distances...

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 features a mix of grass trails, farm tracks, and forest paths, with a total elevation gain of 1900..

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 enjoy a scenic route that includes both climbs and descents, making it suitable for seasoned runners and newcomers alik..

The Midweek Run - Leon's Birthday Run is a special event organized by Saturn Too, celebrating Leon's birthday while promoting an inclusive running experience. Participants can enjoy a flexible 7-hour time challenge along a scenic course by the River Thames, with distances starting from 5km up to 50k..

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 suitable for both experienced ultra runners and newcomers, featuring a flat course with well-stocked aid stations. The route begins in..

The Ridgeway Challenge is an 86-mile (139 km) point-to-point trail running race that traverses the entire length of The Ridgeway National Trail, from Ivinghoe Beacon in Hertfordshire to the Avebury Stones in Wiltshire. This historic route has been in use for over 5,000 years. Scheduled for May 31, 2..

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, flat, single-lap route that includes..

The Circuit du Sore Legs is an annual running event held at Wodson Park Sports Centre in Ware, Hertfordshire. Celebrating its fifth year, the event offers various distances including 5k, 10k, half marathon, full marathon, and a 50k ultra, all run on a 400-meter athletics track. Participants can aim..