Trail Running calendar near Writtle 2026-2027

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.

Three trail distances in Suffolk including 50 km and 50 mile ultras plus a full trail marathon, finishing at Nicholas Everitt Park. Entries include checkpoint food, GPS tracking, a medal and prizes for top finishers.

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.

Goring Gap Trails offers ultramarathon, half marathon and walking distances near Reading on 9 and 10 May 2026. The TRA licensed event includes affiliated and unaffiliated entry options and on site camping.

An inflatable obstacle-course event at Stoke Park, Guildford on 9 May 2026 offering 2.5k, 5k, 10k and 15k lap options with large inflatables, music zones, a finisher medal and family and charity entry choices.

Test your endurance at Stanmer Park by completing 4.167 miles every hour until only one runner remains. This out and back course offers a personal challenge with support facilities and refreshments for all participants.

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..

Riverside lapped races from Wraysbury Skiff & Punting Club near Runnymede, with 10 km, half marathon and marathon options along the Thames Path. The marked route includes marshals, a bespoke finisher medal and podium prizes.

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.

Experience the twilight beauty of Ardingly Reservoir during this evening run in West Sussex. Choose between a 5K or 10K distance on an undulating trail course featuring scenic water views and a finisher medal.

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 multi-distance running event at Naseby Village Hall with trail and road courses including a 35 mile ultra. The route alternates direction by year, features five checkpoints and requires mandatory kit and GPS tracking.

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..

Off road 10k, 5k and junior races at Milton Creek Country Park on 10 May 2026 raising funds for the Oliver Fisher Special Care Baby Trust. The stone trail route includes hills and pacers for the 10k, with medals and photos.