Trail Running Calendar South East (England) 2026-2027

Riverside trail runs from Alexandra Gardens, Windsor with 21.8k and 16.1k routes. The chip timed course features water stations, marked signage, first aid cover and finisher medals and refreshments.

Night time looped trail run at Moors Valley Country Park on 21 November 2026 with 10 km, 20 km or 30 km options, compulsory headtorch and free main car park; runners can choose a tree planting option instead of a medal.

A trail event at Spider Hill featuring a single 10 km lap with marshes, Alligator Swamp, Swan Lake, the Muddy Mile and Duck Pond. A 5 km option uses a shortened version with the same muddy, wet terrain.

A 14 mile trail run on 22 November 2026 with a climb at the start, downloadable route maps and a GPX file. Basic aid stations are provided and parking is very limited so train or cycle travel is recommended.

A scenic off-road 10 mile trail race in the New Forest hosted by Totton Running Club, with medals, water stations and age-category trophies. Entries close 19/11/2026 and the field is limited to 301 runners.

A guided 10 km trail run around the Devil's Punchbowl in Hindhead, Surrey. Group paced on hilly trails with sunset and night options, equipment trials, and an alcohol free beer offered subject to availability.

Trail run from Plumpton Racecourse into the South Downs National Park offering three distances, climbs to the South Downs Way with Seven Sisters and sea views, and a flat final 3 km to the finish.

A riverside marathon and half marathon along the River Thames on an accurately measured UKA certified course. Multiple laps on a flat towpath route with medals for all finishers and virtual entries.

A guided 30 miles of trail starting and finishing in Haslemere, following sections of the Serpent Trail and the Sussex Border Path. Group pace with guidance from an experienced ultra runner and a recommended prior long run of 22 miles.

Join the Christmas Advent Run on Sunday 29 November in Walton on Thames for a festive riverside run. Tackle timed laps to suit you and enjoy optional medal and chocolate advent calendar plus a prize draw.

A community charity run in Campbell Park, Milton Keynes offering 1.5k, 5k, 10k and half marathon options with chip timing, medals, refreshments and a fancy dress element to support Movember and men's health.

Trail races at Mapledurham Estate offering 10K, 10 Mile and Half Marathon routes over muddy paths and woodland, with on-course water, finish refreshments and race amenities included.

A trail half marathon around Hughenden Manor on mostly forest paths with undulating terrain, waymarking and three aid stations. Entry includes chip timing, a finisher souvenir and on-course nutrition.

A 10 km trail race around Hughenden Manor in the Chilterns, with hilly woodland and rural sections, waymarked routes and a water stop at 5.3 km. The event base offers 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 trail run around Box Hill in Surrey that accumulates about 1000 m of elevation over a 12.5 mile route. It features woodland, heathland and technical climbs with some scrambling and a steady group pace.

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.

Hurtwood 50k is a 50 km trail ultra in the Surrey Hills around Dorking Sports Centre on 6 December 2026, with a fully signed course, checkpoints at 7, 13, 18 and 24 miles, SportIdent timing and a 10 hours limit.

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 km trail championship at Wendover Woods on 6 December 2026 with entry by invitation for top 20 percent finishers at Runaway Racing events, age category winners and volunteers. The course is marked and timed, with awards and support fac..