Trail Running calendar near Chignall Smealy 2026-2027

Celebrate the longest day at the Summer Solstice Challenge around Abberton Reservoir, a timed loop with 5 km laps. Run as many laps as you like, earn a medal and support Essex Wildlife Trust.

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.

Community running event in Hawkhurst on 21 June 2026 offering 10k, 5k and a free junior race on a multi terrain undulating course, with finish line cake, a bespoke medal and funds raised for local community projects.

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 lap-based timed event at Ardingly Reservoir offering distances from 5 km up to ultra with a seven hour limit and flexible start times. Chip timing, an aid station and an optional no-medal entry are available.

A flat, timed 10 kilometre out-and-back from the toll bridge in Shoreham to Bramber and back on 21 June 2026, with a halfway aid station, full marshals, 4x4 pickup and a new medal; entries open 20 March.

A single lap fully off road 10K trail through Panshanger Park on 21 June 2026, passing a 500 year old oak, the Queen’s Wood and the Mimram River. The event includes chip timing, a sustainable finisher’s medal and a Family Fun Run.

A muddy 5k obstacle course at Trinity Park, Ipswich on 21 June 2026 featuring climbs, crawls and slides. Waves start every 15 minutes; participants must be 13 or older. Facilities include toilets, refreshments and on-site parking.

A twilight trail race at Ashburnham Place in Battle, East Sussex offering 10k, 5k and a junior run. The event supports four charities and features on-site charity tents, a BBQ and a free sports massage.

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.

Run the Seasons at Cowdray on 26 June 2026 offers 3km and 5km races plus a 10km with dog friendly CaniRun options. The event includes stacking medals, course maps, free photos and an on site BBQ and bar.

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 backyard ultra at Longbridge Farm Barns near Alfriston where runners complete at least 4.167 mile laps every hour until one runner remains. The event uses a token system, timed laps, a small aid station, onsite support and sustainability..

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.

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.