Trail Running calendar near Caldecotte Lake 2026-2027

Trail ultra on the North Downs Way and Norbury Park near Dorking, a fairly level 50k with 2986 ft ascent and four staffed checkpoints.

A multi-distance running festival at High Lodge, Thetford Forest with looped 5 km laps, on-course aid, post-run tea, coffee and cake, and bespoke medals for finishers.

BigMud Trails (EARTH) offers three single lap trail races in the Meon Valley from Queen Elizabeth Country Park. Courses include climbs to Butser Hill, stocked aid stations, mandatory fluid carry and an option to plant a tree instead of a me..

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

Two winter trail races in Northamptonshire offering multi terrain routes and distances from 5K to 15K across Irchester and Brigstock country parks.

A timed lap event in Crystal Palace Park on 21 February 2027 where runners complete 2.65 km laps to reach distances from 5 km to ultra, with a seven hour limit and a finishers' memento for all participants.

Lap-based timed event around Grafham Water offering distances from 5 km up to ultramarathon with a six hour limit and a bespoke finisher medal.

Group guided 10 km trail run across the boardwalk and heathland of Thursley National Nature Reserve with evening and night options, car parking and a post-run alcohol-free beer.

A six hour looped trail at Beacon Hill Country Park on a 3.3 mile course with a sharp climb out and a descent back, flexible lap distances, dog friendly and GPX available.

Running event at Newlands Corner offering 15 km and 10 km options, organised by G3 Series on 27 February 2027.

A 30 mile non-competitive group trail run from Harting Down along parts of the South Downs Way, passing Beacon Hill, Cocking Down and Kingley Vale. Led by an experienced guide and recommended for those who have run at least 22 miles in trai..

A 42-mile trail race from Chipping Ongar to the ancient Chapel of St Peter-on-the-Wall, following an old pilgrimage route through rural Essex. Mostly off-road and often muddy, the route is waymarked with GPX support, four outdoor checkpoint..

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

A navigational challenge in Worcester where participants are blindfolded and dropped at an undisclosed location, then must find their way back over measured distances of 6, 10 or 15 mile. Optional live GPS tracking is available for safety a..

A single lap undulating 10k trail race at Hadleigh Country Park with steep hills, deep mud, technical terrain and mandatory trail shoes.

A themed event at Shipley Country Park on 15 February 2026 celebrating the Chalkhill Blue Butterfly as part of the Butterfly Effect series, with tickets at £41.50.

A 10 km mixed-terrain run from Windsor & Eton Brewery along towpaths and parkland, with staggered starts, a pint cup and free drink at the finish, chip timing and downloadable race photos.

Guided 10 km trail run around Silent Pool near Guildford, following parts of the North Downs Way and Netley Heath forest. Sessions run at dusk or at night with headtorches in a led group and a recommended pace of about 10 min per mile.

Fully marked trail races at Brixworth Country Park offering 10k and half marathon routes around Pitsford Water with water stations and finisher medals.

A muddy weekend trail event at Rosliston Forest in Derbyshire featuring twisty, rooty forest terrain and swampy sections; entry is listed at £41.50.