Trail Running calendar near Eastbourne 2025-2026

Endurancelife Sussex is a coastal trail event based in Eastbourne, showcasing the Seven Sisters and sweeping views of the English Channel. Four distances are on offer: 10K (6.4 miles), Half Marathon (13.1 miles), Marathon (26.2 miles) and an Ultra (32.5 miles). Expect strenuous terrain—chalk downlan..

The Leith Hill Half Marathon is a challenging cross-country race that takes participants from Dorking to the summit of Leith Hill, the highest point in south-eastern England, and back. Spanning 13.1 miles with an elevation gain of 1,800 feet, this event is celebrated for its stunning scenery and sup..

Humanity Direct Amersham Ultra is a one-day endurance event based at Dr Challoner’s Grammar School in Amersham, Buckinghamshire, set in the Chiltern Hills. Runners and walkers can choose from three distances: 50km ultra, 25km half ultra, or a 10km option. The route winds through the Misbourne and Ch..

The Hundred Hills 50km takes place on 14 March 2026 at Stonor Park, Stonor, Henley-On-Thames (RG9 6HF). The event is a trail ultramarathon run as two different 25 km loops, starting and finishing at Stonor Park. Minimum age to enter is 20. Entry fee is £78 for affiliated runners (£80 for unaffiliat..

Sevenoaks Circular Challenge, organised by LDWA Kent, is held from West Heath School in Sevenoaks. This 49th edition features three brand-new routes of 15, 20 and 30 miles, exploring sections of the North Downs and the Greensand Ridge with some of the best views in West Kent. The event includes indo..

Surrey Hills Half Marathon is a guided trail half marathon starting and finishing in Guildford, Surrey. The 13-mile route threads through the Surrey Hills’ scenery, including St Martha’s Church and hill, the village of Shere, and Newlands Corner and Hackhurst Downs, with sections of the North Downs..

The Gratitude 25km is an exciting running event taking place in Broxbourne, UK. This race is designed for runners of all levels, promoting fitness and community spirit. Participants will enjoy a scenic route while challenging themselves to complete the 25km distance. The event emphasizes the importa..

Winter's End - 50 Mile Ultra & Marathon is a scenic trail running event held along the South Downs Way National Trail, starting near Arundel, West Sussex, and finishing in Winchester, Hampshire. The event features a 50-mile ultramarathon and two marathon options covering either the first or second h..

The Windsor Trail Run takes place on Sunday 22nd March 2026 at Alexandra Gardens, Alma Road, Windsor SL4 3HU. The event offers trail running on a flat course with views that include Windsor Castle. The route maps cover a Half Marathon and a 10K. Listed elevations are 29 m for the 10K and 58 m for t..

Hankley Common 10km is a guided trail run by Running Adventures, starting and finishing at Hankley Common Lower Car Park, Elstead, Surrey. The 10km route crosses Hankley Common, known for wildlife and views. The session is social and non-competitive, ideal for those new to trail running or who enjoy..

The Springtide 50k is an ultra running event held in the historic town of Arundel, West Sussex. This single-loop course offers a runnable, non-technical route through the scenic South Downs, making it ideal for beginners and experienced runners alike. Participants enjoy stunning views of rolling hil..

Saturn's 7 Hour Time Challenge at Wraysbury Skiff & Punting Club (Wraysbury, TW20) is an inclusive, self-paced race along the River Thames. Entrants choose a distance from a 3 km lap, with full laps around about 7 km (4.37 miles) or a shorter 3.28 mile option depending on conditions. You can run as..

Mortimer 10km is an annual running event held on Easter Monday, 6 April 2026, at Mortimer Fairground in Mortimer, Berkshire. The long-standing village 10km offers a largely off-road course that weaves along paths and bridleways through nearby woodlands, starting and finishing at the Fairground. In a..

The Henley River Half Marathon, 10K & Junior Race takes place on Saturday 11 April 2026 in Remenham Lane, Henley-on-Thames RG9 3DB. The event is organised by RunThrough UK and is based at Temple Island Meadows, the launch point of the Royal Henley Rowing Regatta. The course runs along the banks..

50 Mile Grand Slam 2026 is a four-race endurance challenge from Centurion Running. It combines four 50-mile events held as the All Four 2026 50 Mile Events: South Downs Way 50, North Downs Way 50, Chiltern Wonderland 50, and Wendover Woods 50. Runners complete all four for the Grand Slam, spanning s..

Spring ‘Run the Seasons’ Cowdray takes place on the Cowdray Estate in West Sussex, near Midhurst. The event offers 5km, 10km, 10-mile and canicross options, all run on a scenic course that heads out to Ambersham and Heyshott Common. These commons are Sites of Special Scientific Interest and Grade 2..

Centurion Running's South Downs Way 50 is a 50-mile ultramarathon along the South Downs Way National Trail, running from Worthing to Eastbourne. The course covers about 81 km with roughly 5,700 feet (1,750 m) of elevation and features seven aid stations, full medical support, and a clearly marked ro..

Windsor 50 Ultra Challenge, formerly The Easter 50, is staged from Windsor Racecourse and offers 50 km, 25 km, or 10 km loop options. Participants traverse looped routes from the basecamp through Windsor Great Park with castle views, to Runnymede and along the Thames Path into surrounding countrysid..

Ultra X’s Spring Trail Series is staged on the Serpent Trail in the South Downs National Park, with all races starting and finishing at Cowdray Farm Shop near Midhurst—a spectator-friendly hub featuring an on-site expo and camping options. The event offers five distances: 12km, 25km, 50km, 50-mile,..

The event is a Half Marathon held in Seaford, East Sussex, with the next scheduled race on 19/04/2026. The route combines the Seaford seafront with sections on the South Downs and is described as a trail course with undulating terrain. Registration, number collection and bag storage are based at Se..