Trail Running calendar near Chalfont Saint Peter 2026-2027

Trail 5K and 10K around the Tewinbury estate in Hertfordshire, fully waymarked with marshals, aid station at 5.3 km and chip timing.

A 21.1 km trail race around Hughenden Manor and surrounding woodlands, mostly forest paths with undulating terrain and three aid stations. The course is fully marked and trail running shoes are recommended.

A 10 km trail race around the National Trust's Hughenden Manor near High Wycombe, featuring woodland trails, about 195 m of ascent, full course marking and a water station at 5.3 km. Onsite facilities include parking, toilets and a cafe.

Timed Thames towpath run where participants choose lap distances on a 5.3 km out and back course and entry supports Rays of Sunshine Children's Charity.

A guided 12.5 mile trail run around Box Hill that gains about 1000 metres of elevation across woodland, heathland and open fields. Group pace with technical climbs and scrambling and a chance of an alcohol free beer at the finish.

A new winter ultramarathon on 5 December 2026 covering about 80 miles across Essex, Suffolk and Norfolk, with checkpoints, mandatory safety kit and live tracking that includes an SOS function.

Three single-loop ultra races of 50k, 55 miles and 100 miles start and finish in Eastbourne, crossing the Seven Sisters and running toward Plumpton. Courses use grass trails, farm tracks and woodland paths on the South Downs.

A 50 km trail ultramarathon from Dorking along the Greensand Way through the Surrey Hills, with a 5 mile loop, marked and supported aid stations, electronic timing and a finisher medal.

A winter trail running festival at Holmesly Campsite in the New Forest on 6 December 2026, offering 15 km, 30 km, marathon and 50 km one lap off‑road courses with marked routes, bag drop and mandatory kit requirements.

A 10 mile canicross loop at Grafham Water on 6 December 2026, following reservoir paths, woodland and the dam wall. Dog friendly with required harnesses, aid station water bowls and finishers medals plus a dog charm.

Bauble Bimble at Ferry Meadows is a four or six hour multi‑terrain event on a 5.3 km lap, letting runners cover distances from 5k to ultras with an aid station each lap and an event medal.

A festive 5 km off road Santa Dash at Tinkley Gate raising funds for Allsorts. Costumes, dogs on short leads and a 2.5 km one lap option for younger participants make this a family friendly event.

Seasonal trail runs at Moors Valley Country Park featuring a 2 km Santa fun run for children plus 5 km and 10 km trail races, entries from £12.

End of season 10 km trail championship at Wendover Woods on 6 December 2026, for Runaway qualifiers and volunteers, limited to 200 runners.

The Mince Pie 10 will take place in Peacehaven on Sunday 6 December 2026. You can run 10 miles.

A continuous 200 mile winter trail loop around the South of England on the North Downs Way, Vanguard Way, South Downs Way, Wayfarers Walk and St Swithuns Way.

Join the Christmas Jumper Friday Run on 11 December in Walton on Thames for a relaxed rock up and run along the riverside towpath. Pick 5k to ultra, run laps within a 7 hour window and earn a bespoke finisher medal.

A festive time challenge along the River Thames in Staines where runners choose distances from 3 km up to 50 km. The event is signed, offers medals and pins, aid stations and goody bags.

A 100 mile winter point to point trail across the South Downs and North Downs from Amberley Museum to Juniper Hall with a 35 hour limit, three aid stations, crew and drop bag support, medical cover and a strict mandatory kit list.

A timed trail event in the Forest of Bere featuring a 3.28 mile lap and distance options from 5 km to ultra. Aid station serves sweet and savoury food including potatoes and vegan choices, and 20% of proceeds support Forestry England.