Trail Running calendar near Grantchester 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 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.

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.

A 7 hour Time Challenge on a signed riverside loop at Wraysbury Skiff and Punting Club, with distances from 3 km to 50 km, themed medals and distance pins, goody bags and aid stations on each lap.

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.

A riverside trail run from Alexandra Gardens in Windsor along the Thames. Two chip timed distances with medals, refreshments, water stations and on-course first aid.

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 trail event at Spider Hill featuring a single 10 km lap with marshes, Alligator Swamp, Swan Lake, the Muddy Mile and Duck Pond. A 5 km option uses a shortened version with the same muddy, wet terrain.

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.

A *10 km* road and riverside run starting and finishing at Kingston Hawker Centre, using chip timing and offering a finisher medal, refreshments and baggage drop. The event supports Kingston Hospital Charity and notes nearby train and local..

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.

A riverside marathon and half marathon along the River Thames on an accurately measured UKA certified course. Multiple laps on a flat towpath route with medals for all finishers and virtual entries.

A six hour timed event at Suffolk Running Centre on a 10.5 km road and trail loop. Participants run laps to cover distances from 5k up to ultra marathon, with parking included, water provision at the lap point, and a bespoke finisher medal.

Join the Christmas Advent Run on Sunday 29 November in Walton on Thames for a festive riverside run. Tackle timed laps to suit you and enjoy optional medal and chocolate advent calendar plus a prize draw.