Trail Running calendar near Thetford 2026-2027

We have found 265 Trailruns within 80 miles of Thetford. See below where and when you can find the races.

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 coastal trail marathon and half marathon finishing in Morston on mainly off road paths, with limited entries and a donation to the East Anglian Air Ambulance. Timing, checkpoints and first aid are provided along the route.

MacTuffX Watford at Woodside Stadium on 19 September 2026 combines ten Xercises with repeated running segments. Options include Solo, Doubles and Relay across two distance formats, and all entrants must be 18 or older.

A half marathon and a 5 mile country race around Clipston Recreation Ground on Sunday 20 September 2026, run mainly on bridleways and footpaths with 237 m total ascent. Entries support the Clipston Recreation Field Trust and local facilitie..

A marathon and half-marathon along the Ouse Valley Way in Huntingdonshire on 20 September 2026, finishing at Earith on mostly flat grass, gravel and tarmac paths. The races are registered with the Trail Running Association and insured under..

A 10 km trail race from Aylsham along the Marriott's Way to Reepham Market Place, mostly off road on an old railway line. Five start waves space runners and entry fees support local council community services.

A five mile autumn trail run on 24 Sep 2026 near Mill Green in Ingatestone. Small capacity event for over 18s with a regular anti clockwise route and compulsory phones and headtorches.

A backyard ultra at The Waggoners in Welwyn Garden City on 26 to 27 September 2026 where runners repeat a 4.167 mile (6.71 km) loop each hour until one runner finishes alone. Entry includes drink vouchers and a commemorative glass.

Experience an autumn run through scenic pumpkin fields and farm tracks in Colchester. With 10k, 5k, and 1k distances, this flat off road event features chip timing and a family friendly event village.

Trail running at Billingford Lakes on 27 Sept 2026 using a 5.3 km out-and-back loop on mixed surfaces. Parking and a base-camp aid station are provided; the event is cupless and all finishers receive a bespoke medal.

Run Sandringham on 27 September 2026 features a Half Marathon, 5K and Community Mile around the Sandringham Estate. The event includes chip timing for the Half and 5K, water stations, medical support and on site parking.

A community charity event on Sunday 27 September 2026 near Grantchester offering chip-timed 10k and 3k courses through farmland, medals for all finishers, trophies, and fundraising for Maggie’s and Addenbrooke’s Charitable Trust.

A community running event in Manuden on 27 September 2026 with 10k, 5k and 1k races, on-road starts then off-road bridleways, water stations and medals for finishers. Funds raised support Sands, St Clare Hospice and village organisations.

MacTuffX London at Wimbledon on 27 September 2026 is a functional fitness race with ten Xercises and repeated runs. Options include solo, doubles, and relay formats over 10x400m or 10x800m, with a LITE weight division available.

October 2026

Camino Ultra's Epping Forest 50 KM on 3 October 2026 is a 50 km ultramarathon in the Epping Forest area of London, listed at Capel Road E12 5DB. It is part of Camino Ultra's 2026 event programme.

A 25 km EcoTrail race in Bell Common, Epping on 03 October 2026. It takes place the same day as other London area trail events and is listed as a trail running option near Epping.

A tenth anniversary five mile chip timed cross country and Canicross race across the Upper Wreake valley with varied terrain and countryside views. Limited to 200 entrants, entries close on 30 September 2026.

A charity 5 mile off road trail race through Cawston Park in Norfolk, chip timed and marshalled, raising funds for Norfolk Lowland Search and Rescue with on site parking and refreshments.

Multi-terrain 10 km and 5 km runs around Thompson, Norfolk, with bespoke medals for all and trophies for top finishers. Proceeds support the Thompson Millennium Green Charitable Trust.

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.

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