Trail Running calendar near London 2026-2027

A seasonal trail running series at Cowdray Estate featuring 5km, 10km and 10 mile races across spring, summer, autumn and a winter night run, with a dedicated kids series and a summer event that includes a BBQ and bar.

A trail event at Hyde Hall Farm on 27 June 2026 with distances from 5k to ultra. Onsite parking, a lap aid station, baggage provision and event medals are included.

A one-day trail running event in Cranleigh, Surrey on 27 June 2026 with five routes from 5 km to 52 km across the North Downs Way and Surrey Hills, outposts on longer routes, GPX files and mandatory kit for the longest races.

Gravel Rush Run at Matterley Estate offers single loop off road races of 10 km and a 21 km half marathon across gravel tracks, grassy paths and woodland trails, with chip timing, a finishers medal and on site catering.

A family festival at Culden Faw Estate on June 27, 2026, focused on a children's obstacle course and a lively event village with food and activities. Race options include two youth OCR categories and a festival-only entry.

A 5 km obstacle course at Stanmer Park on 27 June 2026 featuring muddy climbs, crawls and slides across fields and woodland. The event is for ages 13 and over, has staggered wave starts, and a minimum fundraising target of £50.

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 multi-distance trail running day at Salcey Forest near Northampton offering 10K, half marathon, marathon and 50 km on mostly hard-packed forest trails. The event is cupless, no dogs are allowed, and all finishers receive a medal and drink..

A countryside trail run at 3 Brewers Brewery in Hertfordshire offering 10 km and 5 km options on mostly off road terrain. Finishers receive a medal, a pint cup and a free drink while the event supports local charity Earthworks.

A trail event at Housedean Farm in the South Downs offering a half marathon and a 10K over mixed gravel and trail terrain. Onsite camping and glamping are available and amenities include chip timing, aid stations and a finishers area.

Scenic 5K and multi terrain 10K courses run through Wrest Park and neighbouring farmland, plus children's fun races. The volunteer organised event offers medals, prizes and shares profits with local village groups.

A point to point *50K* trail ultramarathon along the Hangers Way from Alice Holt Country Park to Queen Elizabeth Country Park. The marked course offers aid stations, bag drop, medical support and optional coach transport to the start.

A community trail event at Telscombe Playing Fields on 28 June 2026, featuring a 10k and a junior fun run across bridleways, the South Downs Way and the Greenwich Meridian Trail with multi terrain, undulating footing.

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.

A community 5 km off-road fun run and walk on Therfield Heath, Royston, run over two undulating laps on grass and trails, raising funds for Teenage Cancer Trust with a 700-place entry limit.

A 5.3 mile marshalled trail race around Ashridge Woods on 28 June 2026, starting and finishing at The Recreation Ground, Stocks Road, Albury. Entry fees vary for affiliated and non affiliated runners.

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 guided 10 km trail run at High Lodge in Thetford Forest on 28 June 2026, led at a conversational pace with groups set by ability; entry costs £12.50 and parking is charged at £4.

A charity 5k obstacle run at Blackheath Common on 28 June 2026 where participants climb, crawl and slide around a mainly grassy course while raising funds for cancer research. Wave starts, on-site refreshments and toilets are provided.