Trail Running calendar near Sudbury 2026-2027

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 half marathon through Thetford Forest with mixed hard-packed and forest trails, cupless water refills, eco-friendly finisher medals and podium trophies. Minimum age 17 and a 3.5 hour cut-off.

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 in Norwich on 17 October 2026 offering 2.5k to 15k options, music zones, on course water and a finisher medal for every participant, with family, group and charity ticket discounts.

An annual 25 km and 50 km challenge walk, jog or run through footpaths and tracks in Kent, Surrey and Sussex on 17 October 2026. Entrants receive route files and have checkpoints, food and first aid included.

A guided 10 miles trail run around the Chilterns, following canals and reservoirs and passing Britain’s oldest post windmill. The event includes a run leader, trail technique instruction and a finisher’s medal.

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..

Woodland half marathon and 10k at Bedgebury National Pinetum in Kent on 18 October 2026, with traffic-free forest trails, downloadable GPX maps, medals, free photos and limited free parking.

An off‑road cross‑country race in Hardwick, Buckinghamshire, covering about 6 miles across varied terrain and water crossings. Entry is limited to 300 runners, with medals and category prizes including team awards.

A 10K trail run through the private grounds of Hole Park in Cranbrook, Kent on 18 October 2026, featuring parkland and woodland sections, timed results, official photography and bespoke finisher medals.

A multi-distance running festival in Palace Green, Ely offering way-marked out-and-back courses from 10k to an ultra with aid stations, timed results and a custom event medal. The ultra includes checkpoints and on-course support.

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 anti-clockwise loop around Canvey Island starting and finishing at Waterside Farm Leisure Centre, with a pub check at about 10 km, a four hour cut off, and a route mainly on sea wall and coastal paths.

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.

Looped races at Chalfont Park and Chalfont St Peter let runners choose distances from a 7K loop to multi lap ultras. Aid station, clear course marking, crew support and medical cover are provided.

A Halloween themed night run at Irchester Country Park on 30 October 2026, offering a 5k race and a 2k family fun run on marked woodland trails. Entries include a finishers medal, free photos and a bag of Halloween treats.

Single-loop 50K trail race in the Chilterns starting and finishing at Berkhamsted Cricket Club on 31 October 2026. The route uses The Ridgeway and Chiltern Way, has three aid stations, full marking and a nine 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.