Trail Running calendar near Chiltern Hills 2025-2026

The Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run 4.167 miles every hour on the hour until only one runner remains who can complete a loop within the one-hour time limit. This late summer edition of the Backyard Ultra feature..

The Thames Path Ultra Challenge is a premier endurance event taking place on September 13-14, 2025, along the scenic Thames Tow Path from Putney Bridge to Henley. Participants can choose from various distances, including 100 km, 75 km, 50 km, and 25 km, as well as a Henley 10K. The event attracts ov..

The C2C Essex Ultra is an ultramarathon event taking place in September 2025, offering participants the choice of running either 30 or 50 miles along the scenic Essex Riviera. Organized by c2c, the event aims to raise funds for the children's cancer charity Gold Geese, which provides essential suppo..

Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. Participants can choose from four courses: a 10km, half marathon, marathon, and a 50km ultra, all set against the backdrop of beautiful rural trails and quiet country lanes. The routes..

The Brighton 50/50 event, organized by RunThrough UK, features a series of trail races including 50 miles, 50k, and 23k, taking place on September 13, 2025. Starting and finishing at Brighton Beach, participants will experience scenic routes through the South Downs, offering breathtaking coastal and..

The Alf Shrubb Memorial 10k is a cross-country running event held in Slinfold, West Sussex, honoring local running legend Alf Shrubb. Scheduled for September 14, 2025, the race features a scenic route through the countryside, chip timing for adult participants, and children's races, making it a fami..

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with some hills along the way. The event..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Bradley Fell Race, organized by the British Open Fell Runners Association (BOFRA), is a competitive running event set in Bradley Village, North Yorkshire. Scheduled for September 14, 2025, the race features various age categories, including Under 9, Under 12, Under 14, Under 17, and Seniors. Par..

The Humanity Direct Tring Ultra is a one-day ultra marathon event set in the scenic Chilterns, designed for both novice and experienced runners. Participants can choose from three distances: a full 50km ultra, a 27km half ultra, or a new 10km option. The event not only offers a challenging running e..

The Lucky Horseshoe is a running event hosted at the Suffolk Running Centre in Bury St Edmunds, offering participants a choice of distances including 5k, 10k, Half Marathon, Full Marathon, and Ultra. The race features an out-and-back route, providing a social atmosphere and scenic views, including p..

The Cotswold Half Way is a challenging trail running event covering approximately 47 miles along the scenic Cotswold Way National Trail, starting from Chipping Campden and ending in Painswick. Scheduled for September 20-21, 2025, this race is designed for participants aged 21 and older, offering a u..

The Guided Half Marathon - Winchester will take place in Winchester on Saturday 20 September 2025. You can run 13 miles.

The Triple Trail 50 is a scenic 50km ultra marathon event organized by Embrace Ultra, taking place in Kent. This point-to-point race starts at Ranscombe Nature Reserve and finishes at Loddington Farm, showcasing beautiful landmarks such as Leeds Castle and picturesque apple orchards. The course foll..

The Triple Trail Races, part of the Embrace Ultra event, is set to take place in Kent on September 20, 2025. This trail-running challenge features two race options: a 100km Full Loop, which is Kent's only single-loop ultra marathon, and a 50km Half Loop, offering a scenic point-to-point experience. ..

The Centurion Chiltern Wonderland 50 is a challenging 50-mile ultramarathon set in the scenic Chiltern Hills, featuring a single-loop course that includes 5,600 feet of elevation gain. Runners will traverse picturesque villages and historic sites, with the event fully supported by five aid stations ..

The Cotswold Way Century is a challenging trail running event covering 102 miles from Chipping Campden to Bath along the scenic Cotswold Way National Trail. Participants must navigate a hilly terrain filled with stunning viewpoints and picturesque villages, all while adhering to public rights of way..

The Ouse Valley Way Half & Marathon is an annual running event taking place in Huntingdonshire, featuring a scenic 26.2-mile marathon and a half marathon. The course runs along the picturesque Ouse Valley, offering a mix of grass, gravel, and tarmac paths. For the 2025 edition, the route will start ..

The Clipston Trail Half and Country 5 Miler is a scenic running event set in the picturesque countryside surrounding Clipston. Participants can choose between a half marathon and a shorter 5-mile race, making it suitable for both seasoned runners and those new to trail running. The event is organize..

BigSky Trails (AIR) is the final event in the Classic Element Trail Series, organized by BigFeat Events. Set in the picturesque New Forest National Park, this trail running event offers participants a choice between an 18-mile route and a marathon distance. Runners will experience stunning views and..