Sudbury
Trail Running Calendar near Sudbury 2026-2027
Explore the top trail runs near Sudbury for 2026-2027! We've gathered 81 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
Backyard Ultra at High Lodge, Thetford Forest, where runners complete a 4.167 mile loop each hour until one remains; 6 and 12 hour time limited options are available.
The Dedham Run on 13 September 2026 features a 10K road race, a new 10K trail run and a 3K fun run through rural Essex, supporting Dedham Primary School with water stations, race-number collection at The Duchy Field and on-site refreshments.
A multi-distance out and back run on 19 September 2026 at Suffolk Running Centre, featuring 5k to ultra options, regular aid stations, parking included and bespoke finisher medals.
A guided 10k run at High Lodge in Thetford Forest that combines trail running with local forest facts and practical tips. It is led at a conversational pace in ability groups, with mostly flat terrain and a couple of small hills.
A five mile trail run on 24 September 2026 at The Viper in Mill Green near Ingatestone. Limited to over 18s with a small field; participants must be self sufficient with phone and headtorch and a tail runner is on course.
An autumn running event at Foxes Farm, Colchester on 27 September 2026 offering 10K, 5K and a 1K family dash over traffic-free farm tracks and past pumpkin fields, with chip timing, medals and an event village.
Rural chip timed 10k and 3k near Grantchester supporting Maggie’s and Addenbrooke’s Charitable Trust with medals, trophies and on site health services.
October 2026
A 50 mile coastal ultramarathon along the Essex saltmarshes, starting at South Woodham Ferrers Rugby Club and finishing at Maldon Promenade Park. Fully supported with aid stations, GPX route files, a shuttle option and a 15 hour cut off.
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.
A looped 20 mile trail at Landguard Fort on 11 October 2026 crossing nature reserves, estuaries and the Port, with aid stations and race kit included.
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 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.
Approx 6 mile self navigation trail in Chelmsford with glow in the dark medals and light refreshments, limited to 120 places; minimum age 16.
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 men and w..
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 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.