Trail Running calendar near Amersham 2026-2027

A guided 16k trail run at High Lodge in Thetford Forest led at a conversational pace with route guidance, trail running tips and an optional cool down. Terrain is mostly flat with a couple of small hills and parking costs £3.

Lap-based timed run at Tilgate Park, Crawley offering distances from 5 km to ultra with flexible start times and a seven hour limit on a compact off-road trail.

The Phoenix Running - Slough will take place in Slough on Thursday 8 October 2026. You can run 5 miles.

A six hour multi-lap off road event at Sence Valley Forest Park where participants complete 3.3 mile laps at their own pace, with canicross allowed and options for a medal or tree token.

A lap based Friday timed run on the Thames towpath offering distances from a single 3.28 mile lap up to ultra distances, with the ten pound charity entry supporting Rays of Sunshine and a special double sided medal.

Looped trail event near Maidstone offering 50 km, 25 km and 10 km options. The route follows the North Downs Way and River Medway and includes covered rest stops, GPS tracking and camping at basecamp.

A backyard ultra at Turvey House where runners complete a 4.167 mile (6.7 km) loop each hour; failing to start a loop on the hour means elimination. Entries include solo, paired teams alternating loops, and an 8 hour day cap.

Inflatable 5K in Cheltenham on 10 October 2026 features giant inflatables across 2.5 km laps with 2.5k, 5k, 10k and 15k options, music zones, medals and family rules.

The Beat Box Hill 50k will take place in Tadworth on Saturday 10 October 2026. You can run between 21 and 50 kilometers.

A 10 lap ultra at Pippingford Park on 10 October 2026 with 3, 4 and 5 mile loop options, regular aid stations and close parking.

A half marathon and 10K through Epping Forest, London on 10 October 2026, run on marked woodland trails with aid stations, chip timing and an eco friendly focus.

A military inspired obstacle mud run at Hever Castle on 10 October 2026 offering 3K, 6K and 12K courses, junior options, and an event village with spectator attractions.

Road and trail races in the Chiltern Hills on 11 October 2026 offering 5 km and 10 km routes with woodland paths, country lanes and notable climbs.

The Titsey Trail 10k is a community running event held on Sunday, 11th October 2026. Organized by runners for runners, it raises funds for a variety of local charities.

Trail races from Marlow Park at Grafham Water offering 10k and half marathon routes on marked countryside trails with water stations, medals and prizes.

Trail and fun runs near Old Basing on 11 October 2026 with chip-timed 10K and 6K races plus a 2K family fun run supporting local schools.

A single-lap 10K on 11 October 2026 around Burnham on Crouch, featuring sea wall coastal paths and countryside trails. The event is based at Dengie Hundred Sports Centre with free parking, facilities and post-run food and drink.

Functional fitness race at Swindon's County Ground on 11 October 2026 combining ten Xercises with 400m or 800m runs and solo, doubles or relay teams of five for entrants 18 years and over.

A circular 13.1 mile trail race through Thetford Forest on mixed hard packed trails with wildlife, cupless water refill points, finisher medals and trophies for top three men and women.

Off-road family races on 11 October 2026 at Withymead Playing Fields with 2 km, 5 km and 11 km options, organised to raise funds for Marshfield Primary School PTA.