Trail Running calendar near Caldecotte 2026-2027

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 flexible Friday running event on a flat 5.3 km out and back course along the Thames offering distances from 5 km to ultra, timed over a seven hour limit with bespoke finishers medals.

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..

Timed multi lap event on the Itchen Way in Winchester on 14 November 2026, with 2.62 mile laps that add up to half marathon, marathon and ultra distances. Flexible start format, aid station with vegan options, bespoke finisher's medal.

Trail races at Westerlands near Graffham: a 50 km Ultra linking five long distance trails and a 13 mile Half on three trails, with SportIdent timing, aid stations, mandatory kit and a wooden eco-medal for finishers.

A multi-terrain *5K* and *10K* race in the Chiltern Hills on 15 November 2026, organised by the Radnage Primary School PTA, with water stations, first aid, a village hall cafe and proceeds supporting the school.

Saturn Running holds the Smurf Run along the River Thames at Wraysbury on 15 November 2026. The seven hour Time Challenge starts from 3 km laps and includes finisher medals, distance pins, aid stations and goody bag options.

A marathon and half marathon on hilly, often muddy trails in the northern Cotswolds. The event is TRA licensed and run under UK Athletics rules; minimum age 18 and entries are open.

A countryside walking event from Barton le Clay with 12, 18 and 26 mile routes across fields, tracks and woods; online entry, checkpoint support, refreshments and certificates included.

A trail event in the Meon Valley with 15.5, 21.5 and 40 mile options on the South Downs Way and surrounding paths. Routes are largely trail, include stocked checkpoints and are waymarked with GPX files available.

A guided 16k trail run at High Lodge in Thetford Forest on 15 November 2026. Runs are led at a conversational pace with group placement, varied woodland terrain, and basic kit and parking information provided.

Timed multi-lap run on a flat Thames towpath in Walton on Thames with distances from 5 km to ultra, a seven hour limit, flexible one hour start window and finishers medal options.

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 trail ultra of about 50 km around Putteridge Bury with ridgeline running, three aid stations and an 8 hour 45 minute time limit.

Riverside trail run from Alexandra Gardens in Windsor along the Thames with two distances, chip timing, water stations, and finishers' medals.

A half day 10 km trail run in the Chiltern Hills followed by a Tring Brewery tour with tasting and a choice of a bottle or a pint.

Wet, muddy trail races at Spider Hill, Long Valley offering a single-lap 10 km and a shorter 5 km with marshes, named water features and multiple climbs.

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 Half Marathon and a 10k on Wimbledon Common in London supporting Beder, with a trail marked course, course marshals and an event village offering food, drink and partner goodies.