Trail Running calendar near Colchester 2026-2027
We have found 389 Trailruns within 80 miles of Colchester. See below where and when you can find the races.
0 – 100∞ km
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Group runs led by queer folks that prioritize an inclusive space while exploring the trails and unpaved surfaces of north London. Meetings are at the entrance to the turf at Whittington Park and routes are about 6k.
A mainly off road 15k trail run at Trifarm, Boreham on 06 May 2026 featuring an anticlockwise route on public footpaths and bridleways, on-site parking, water points and manual timing.
A 100K trail race on an anticlockwise loop of the Chiltern Hills, starting and finishing in Chesham and passing The Ridgeway, Ashridge Estate and other landmarks. Fully marked with open GPS tracking and organised support at aid stations.
A point to point 50 km ultramarathon from Horsham to Brighton seafront on 9 May 2026, featuring multi terrain trails, four feed stations and a 9.5 hour cut off. Individual and two runner relay entries are offered with team prizes.
A two day trail running festival at Deene Park Estate near Corby offering three challenges across multiple distances, including a combined 56.1 km Quest. Entries include finisher medals and the weekend features on-site entertainment.
Inflatable 5K in Guildford on Saturday 9 May 2026 is an inflatable obstacle course at Stoke Park offering 2.5k laps with options of 2.5k, 5k, 10k or 15k and family friendly participation rules.
Nuclear Rush is a muddy obstacle race at the Secret Nuclear Bunker Estate in Essex featuring 6 km with 40 plus obstacles and 12 km with 70 plus obstacles, plus signature features such as the 20 foot Deathslide and multi lane zip wires.
A national OCR event at Nuclear Rush supported by British Obstacle Sports, the British OCR Championship runs a 12K plus route with 60 plus mandatory obstacles across mud, water and rugged terrain. It is chip timed, for 18 plus, and awards m..
A riverside event at Wraysbury Skiff & Punting Club offering 10 km, half marathon and marathon courses along the Thames Path with marked laps, marshals, a bespoke finishers medal and prizes for top finishers.
A weekend of muddy obstacle races at the Secret Nuclear Bunker Estate in Essex, with distances from 1.5 km to 38+ km, signature obstacles like the Deathslide and zip lines, chip timing and on-site facilities.
A 5 km run at Banham Zoo on 09/05/2026, taking participants through parkland and a lap around the zoo with animal views. Entry includes full day zoo access and a finisher medal while supporting conservation and fundraising.
A Pretty Muddy 5k obstacle course at Norfolk Showground featuring climb, crawl and slide elements on a mostly flat route contained within the showground. Participants must be 13 or older and a minimum fundraising target of £50 applies.
A 30th anniversary road marathon organised by Halstead Road Runners, set on scenic low traffic roads in North Essex. The event supports local charities, forms part of the Essex championships and limits entries to 500.
A road marathon and half marathon based at Suffolk Running Centre near Bury St Edmunds, using measured routes with aid stations every 10 km. Entries include parking and a bespoke finisher medal; the event is cupless so bring your own bottle..
An approximately 13 mile self guided loop around the Garden City Greenway starting and finishing at Standalone Farm, organised under UKA rules with a three hour time limit and proceeds donated to the charity GRIT.