Trail Running calendar near Earith 2026-2027

A 21.2 km trail half marathon at the National Trust's Dunstable Downs on 21 June 2026, featuring 450 m of ascent, marked trails, two aid stations and on-site facilities including parking and a cafe.

Run through the historic landscapes of Horsell Common where the Martians first landed in literature. This volunteer led charity event offers trail routes from 2 km to 21 km in a scenic Site of Special Scientific Interest.

A 10 km trail run and 10 km canicross around Tusmore Estate, finishing at Twisted Tree Brewery with a medal, a pint cup and a free drink included.

Circular countryside routes of 26 miles and 18 miles around Baldock in Hertfordshire, with checkpoints, refreshments and a light finish meal. Entries close 13 June or when the 175 place limit is reached.

A trail running event set inside Trent Country Park, Enfield, with wooded paths, grassy sections and some hills. Races include a 10 km senior race, a 4.5 km junior race and a 2 km kids fun run.

A scenic off road 10 km trail at Panshanger Park with chip timing and a sustainable finisher medal; proceeds support local charities and a family fun run is included.

A 5k obstacle event at Trinity Park, Ipswich on 21 June 2026 that raises funds for Cancer Research UK. The grassy, fairly flat showground course features climbing, crawling and sliding obstacles and uses staggered wave starts.

A **10 km** off-road trail run at Trifarm near Boreham on 25 June 2026, run mostly on public footpaths and bridleways. The route is anticlockwise, finishes with a lap around the lake, and offers on-site parking and on-registration water.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

A 24 hour obstacle course at Belvoir Castle on June 27 and 28, 2026. Competitors run repeated 5 mile loops with ice and greased quarterpipe obstacles; entries include individual, four person team relay, pit crew spectator and a post event b..

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 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.

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..

Experience a scenic 10km mixed terrain run through the trails and woodland of Hatfield. Starting and finishing at the 3 Brewers Brewery, participants enjoy chip timing and a complimentary drink at the finish line.

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.

The Midsummer Munro is a half marathon held at Box Hill Fort in Surrey. The event takes place in late June. Runners can register online until the day of the race.

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.