Trail Running calendar near Knettishall 2026-2027

A circular half marathon at High Lodge in Thetford Forest on a well signed 13.1 mile course featuring mixed forest and hard-packed trails, cupless water stations, manual timing and trophies for top finishers.

An inflatable obstacle course in Norwich on 17 October 2026 offering 2.5k, 5k, 10k and 15k options across repeating 2.5 km laps, with music zones, water station, finisher medal and family friendly rules.

A guided 10-mile trail run through the Chilterns along canals, reservoirs and past Britain’s oldest post windmill; includes trail technique coaching and a finisher’s medal for 2026. On-site parking and a 15 minute walk from the station.

An off-road 10 km through undulating bridle paths and woodland around Westacre, Norfolk, featuring optional obstacles, a ford crossing near the finish, on-site registration, a water point at 5 km, refreshments and a bespoke medal for all en..

A muddy 10 km obstacle race in Lincolnshire on 18 October 2026, featuring crawling, climbing, carries and water obstacles. Finishers receive a bespoke medal and a Yellow Belly Pale Ale.

Ely Tri Club Runfest on 18 October 2026 offers multiple distances from 10 km to a 66 km ultra. Routes are mostly flat and traffic free with course maps, on-course food and drink, and a few obstacles such as steps and stiles.

A 30 mile out and back ultra along the River Stort and Lee navigations on the Hertfordshire Essex border, mostly flat grassy and gravel trail with checkpoints every 5 miles, electronic timing, medals for finishers and trophies for top three..

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.

A timed, self supported anticlockwise loop around Canvey Island starting and finishing at Waterside Farm Leisure Centre. The mostly coastal route includes sea wall, grass and gravel paths, a 10k pub check point and a four hour cut off.

ATW Grafham 5K and 10K take place at Grafham Water Visitors Centre on 25 October 2026. Entry fees range from £24 to £33, the races run alongside the ATW Grafham Duathlon, and camping is available the night before.

An off-road event south of Canterbury offering marathon and half marathon routes across scenic trails and country lanes. Checkpoints, mandatory kit requirements, OpenTracking and Event HQ facilities are provided.

A countryside walking event from Blackmore Village Hall offering 26 miles as a figure of 8 and an 18 miles option, with checkpoints, food at controls and a finish meal. Part of the Essex and Herts Triple Challenge.

A guided 10 km trail run through High Lodge in Thetford Forest, led at a conversational pace with group placement by ability. Mostly flat mixed terrain with a couple of small hills and practical tips on trail running.

A Halloween themed night time run at Irchester Country Park on 30 October 2026 offering 5k and 2k family runs, finishers medals, Halloween treats, free event photos and prizes for top 3 men and women in the 5k.

A single-loop **50K** trail race from Berkhamsted through Ashridge and along The Ridgeway, featuring 800 m of ascent, fully marked navigation, three full aid stations and a 9-hour cutoff.

A Halloween themed *6.66 km* trail run in Chelmsford on 31 October 2026 with GPX/Strava route support, fancy dress prizes and a brewery finish offering a medal, drink and crisps.

The Leigh-on-Sea 10k will take place in Southend-on-Sea on Sunday 1 November 2026. You can run between 5 and 10 kilometers.

Night and dawn five mile runs in Market Harborough that pass through the 422 m Oxendon Tunnel. Headtorch required, entries are £23 single or £40 for both, and all finishers receive interlinking medals.

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.

A winter obstacle race in Brentwood, Essex featuring muddy courses across farmland, woodland and lakes. Distances range from about 6 km to 24 km with dozens to hundreds of natural and man made obstacles and chip timing for participants.