Trail Running calendar near Newmarket 2026-2027

A six-hour off-road challenge at Beacon Hill Country Park on a 3.3 mile loop. Participants complete as many laps as they wish within the time limit; a head torch is required for laps started after 7pm.

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.

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.

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.

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.

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.

A guided 30 km trail run in the Chiltern Hills with trail technique instruction, checkpoints, a finisher’s medal and Trees not Tees certificate, based near Tring Station with limited spaces.

A trail running event conceived to increase participation from Black people, people of the global majority and allies. It offers 1K, 5K and 10K distances, children's entries are free under 16, and the day includes food, live music and activ..

A cross country event in Little Gaddesden on 10 May 2026 offering 10K, 5K and mini races for under 7s. Pre registration and on the day fees apply and medals are awarded to all finishers.

A self‑navigated trail event in Thaxted on 10 May 2026 raising funds for Thaxted Windmill restoration. Two route options are offered, 5 miles (8k) and 8.25 miles (13k), with entry fees and a refreshment voucher included.

Race 2 of the Northants 5 km Series is at West Lodge Farm in Desborough on multi terrain routes through fields and nature trails. Finishers receive a bespoke medal; parking is free and on site refreshments are available.