Trail Running calendar near Knettishall 2026-2027

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 looped 20 mile trail event at Landguard Fort in Felixstowe on 11 October 2026. The route crosses two nature reserves, two river estuaries and the Port, includes a 6 hour cut off, and is held under UK Athletics rules.

Trail races at Grafham Water from Marlow Park with fully marked 10k and half marathon routes, water stations and on-course first aid. Entries priced at £25 and £30, minimum ages apply, and all finishers receive a medal.

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.

A circular 13.1 mile trail half marathon at High Lodge in Thetford Forest, featuring mixed forest and hard-packed trails, cupless water stations, manual timing, and a 3.5 hour cut-off; minimum age 17.

A nighttime backyard ultra from Vigo Rugby Club that sends runners repeatedly on a 4.167 mile loop, starting each hour. Options include an open-ended Backyard Ultra or a 7 hour Challenge, with buckle and medal awards plus a team prize.

An inflatable obstacle-course event at Royal Norfolk Showground on 17 October 2026 with 2.5 km laps and options up to 15 km, music zones, a water station, finisher's medals, and family-friendly entry rules.

A guided 10 mile trail run around canals, reservoirs and Britain’s oldest post windmill near the Chilterns. Includes a run leader, trail technique instruction and a finisher’s medal; places are limited to 40.

An off road 10 km run through Norfolk bridle paths and woodland with optional obstacles and a ford crossing. Event HQ is at The Stag pub, a water point is at 5 km, refreshments and bespoke medals are provided and proceeds go to Purfleet Tru..

Scenic 30 mile ultra along the River Stort and Lee navigation, run as a 15 mile out and back on mostly grassy trail and graded footpaths. Trophies for the first three men and the first three women and medals for all finishers.

Pumpkin Plod at Ferry Meadows is a multi-hour lap event on a 5.3 km mixed-surface loop where runners complete as many laps as they choose. Aid is provided each lap and finishers receive an event medal.

Experience a timed anti clockwise loop around Canvey Island featuring sea wall paths and coastal trails. This self supported adventure includes a unique pub check point and follows the scenic King Charles III England Coast Path.

ATW Grafham 5K and 10K at Grafham Water on 25 October 2026 features 5K and 10K races alongside the ATW Grafham Duathlon. Camping is available and the event supports Alzheimer’s Research UK.

Off-road marathon and half marathon south of Canterbury on scenic trails and country lanes. The Marathon requires navigation and mandatory kit; OpenTracking is available and £1 from each entry supports the Kent Neuro Therapy Centre.

A Halloween-themed night run in Irchester Country Park with a 5k race and a 2k family run. Entry includes a finisher medal, free event photos and a bag of Halloween sweets.

A single loop *50K* trail race through the Chilterns starting and finishing at Berkhamsted Cricket Club on 31 October 2026. Fully marked route with three full aid stations, navigation support and a 9 hour time limit.

Experience a festive 6.66 km Halloween trail run starting and finishing at a local brewery in Chelmsford. Participants enjoy a costume focused event with medals and drinks for finishers in a social atmosphere.

Petzl Tunnel Vision in Market Harborough is a pair of 5 mile out and back runs on 5 and 6 November 2026, one at night and one at dawn. The route includes the 422 m Oxendon Tunnel with mood lighting and requires a headtorch.

Two days of marathon and half marathon races around Caldecotte Lake in Milton Keynes on 6 and 7 November 2026, with multi-lap clockwise courses, on-course water and toilets, enforced time limits, and bespoke finisher medals.

Nuclear Fallout is a winter mud and obstacle event near Brentwood, Essex offering 6 km, 12 km and an advanced 24 km plus lapped course with dozens to hundreds of natural and man made obstacles, chip timing and finisher medals.