Trail Running Calendar South East (England) 2026-2027

RunThrough Marlow Trail Run on 28 June 2026 features off-road Half Marathon, 10K and 5K routes around the Thames Valley, with marked trails, chip timing, free photos and a themed medal.

A trail event at Housedean Farm near Lewes offering a half marathon and a 10K through South Downs scenery. The course mixes gravel paths and well kept trails and includes chip timing, aid stations and on site camping.

A point to point 50K trail ultramarathon on the Hangers Way from Alice Holt Country Park to Queen Elizabeth Country Park, with signed trails, aid stations, coach-to-start option, mandatory fluid kit and a 9 hour cut-off.

A trail running event in Peacehaven on 28 June 2026 featuring a **10 km** race and a junior fun run across the South Downs Way and local bridleways. The event includes a medal, photos, water stations and finish-line refreshments.

A Half Marathon at Box Hill Fort (Tadworth) on 28 June 2026 with more than 3000 feet of ascent and descent. The route runs mainly on rough tracks and offers views over the North Downs, the Mole Gap, Denbies Vineyard and Dorking.

North Downs Run is a multi terrain 30 km race through the Kent countryside on Sunday 28 June 2026. Entries are open with online entry closing 14 June; fees are £38 affiliated, £40 non affiliated and £45 on the day if places remain.

A ten leg team relay along The Ridgeway, one of England's National Trails covering 86.5 miles. The off road, hilly route finishes in Marlborough and teams compete for the shortest total time with rules on leg composition.

A community run on 28 June 2026 at Damerham Sportsfield with fully marked, mostly off-road 5 km and 10 km routes plus a children's colour run, medals and category trophies, parking, food stalls and first aid cover.

A 7.5 km trail loop around Alfriston with over 80 percent off road running, a fully marked and marshalled course and prizes for first male and female. Entry is limited to 50 runners and refreshments are provided after the race.

A guided 10 km trail run around the Devil's Punchbowl in Hindhead, Surrey. Group paced on hilly trails with sunset and night options, equipment trials, and an alcohol free beer offered subject to availability.

A timed charity run along the Thames with lap options from 5.3 km up to ultra distances. The Run for a Tenner entry donates £10 to Rays of Sunshine and all finishers receive a bespoke medal.

Trail running across the South Downs with distances from 10 km to 100 km, marked routes and checkpoints. Coach transport, camping, a kids race and on-site food and bar are available at Petersfield Rugby Club.

Choose your own challenge at the Summer Sun Run, a flexible lap event set in the scenic Denbies Wine Estate. Complete as many 5.3 km laps as you like within 7 hours, with a large medal for all finishers. Enjoy a flexible start window and a..

Run a flexible distance along Winchester's scenic Itchen Way in this American-themed event. Choose your own challenge from a 2.62-mile loop, with trophies for the best costumes. Enjoy a well-stocked aid station and a flexible start time.

A 5k muddy obstacle course at Kempton Park Racecourse on 04 July 2026 featuring climb, crawl and slide obstacles. Entry fees and a minimum fundraising target apply; facilities include parking, toilets and on-site accessibility support.

A 5k obstacle event at Mote Park on 4 July 2026 featuring climbs, crawls and slides around the lake. The event has a £50 fundraising minimum and is not suitable for wheelchair users or pushchairs.

A 21.1 km trail race along The Ridgeway between Wendover and Princes Risborough in Buckinghamshire, with 526 m of ascent, two aid stations and a four hour time limit. Entry is capped at 350 runners and the race is a UTMB World Series index..

Two trail races around Bewl Water in East Sussex offer a full 15 mile loop including the nature reserve and a 5 mile off road return route. The event supports the regional air ambulance and includes a finisher medal and commemorative t shir..

A women only trail event at Denbies Wine Estate in Surrey on 5 July 2026 offering 50K, 25K, 10K and a kids race. No cut offs and options for in person or virtual participation, with profits supporting the SheRACES mission.

An evening 10 km trail run through Thursley National Nature Reserve, crossing heathland, bog and woodland and featuring the boardwalk named Britain's Favourite Path. The event is organised by Running Adventures and is aimed at trail newcome..