Trail Running calendar near Thetford 2026-2027

A single-loop 50K trail race on 31 October 2026 starting and finishing in Berkhamsted. Fully marked route with three aid stations, about 800 m of ascent, a nine hour time limit and a 350 runner field.

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.

Forest trail races at Wendover Woods on 1 November 2026 include marathon, half marathon, 10k and a junior run over a multi-lap 10 km course with varied, hilly terrain and on-site facilities for spectators.

An out-and-back 5 mile night and dawn running event through the 422 m Oxendon Tunnel with mood lighting and headtorch required. Finishers receive medals, prizes are awarded, on-course support and refreshments are provided.

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 muddy, multi-terrain obstacle race in Brentwood, Essex offering *6 km*, *12 km* and a multi-lap *24 km+* option with dozens of natural and man-made challenges.

Experience a scenic trail run through the Bedfordshire countryside starting from Leighton Buzzard. Choose between a classic half marathon or a metric distance featuring canal towpaths, woods, and rolling hills.

A flat route along the Fens Way from Cambridge toward Ely and Kings Lynn offering marathon, 50 mile and 100 mile distances plus relay options, GPS tracking, generous cut offs and on-course support.

A Remembrance Sunday trail event in Brightlingsea on 8 November 2026 with live Last Post and a two-minute silence during the race. A looped course offers 10km, half, marathon and a six hour timed option with on-course aid stations.

A three day, 84 mile (135 km) ultramarathon along the Ridgeway from Buckinghamshire to Wiltshire with two overnight stops in Watlington and Didcot. Organised by XNRG Druids, it offers full packages with accommodation and single day entry op..

A 50 mile race of five 10 mile loops wholly within Wendover Woods, featuring 10,000 feet of climb, nine well stocked aid stations and marked trails. The event is supported by race medics, has a 15 hour cut off and requires marathon qualific..

Trail ultramarathon on the Weavers' Way with **100 km** from Great Yarmouth and **50 km** from Stalham, passing marshes, rivers, stately homes and finishing at Cromer Pier.

Run Henham is a park based running event at Henham Park in Suffolk organised by EPIC Norfolk. It features a 10 km race with chip timing and a 1 km fun run, bespoke medals, charity entry options and on site race facilities.

An off-road walking and running event from Barton-le-Clay Village Hall with route choices of 12 miles walkers only, 18 miles and 26 miles. Online entry is required and route descriptions must be downloaded and printed in advance.

A six-hour lap event at Salcey Forest where participants choose how many 3.5-mile loops to run. Dogs and rucking are allowed, a reduced parking rate is available, and there are options for charity donations or a tree token instead of a meda..

A 10k night trail at Salcey Forest on a marked two lap crushed stone route that can be slippery in wet weather. A head or chest torch is required, Petzl will provide demo kit, and a canicross option runs ten minutes before the main field.

A fully marked *50 km* trail ultra from Putteridge Bury in Luton, running along North Chiltern ridgelines with three checkpoints, required safety kit and UTMB World Series index status.

Enjoy a guided 10km trail run through the scenic Chiltern Hills followed by a private tour and tasting at Tring Brewery. This social event includes professional trail instruction and is open to runners of all abilities.

A mostly off road 15k trail at Trifarm near Boreham on 21 November 2026, following public footpaths and bridleways. The anticlockwise route starts by the lake and finishes on the running track beside the road entry.

A flat, fast trail run through the Suffolk AONB from Wantisden Hall offering three waymarked distances—9 km, 16 km and 23 km—with outposts on the longer routes and on-site facilities including free parking and timing.