Trail Running calendar near Stowmarket 2026-2027

A multi-distance weekend at Deene Park near Corby offering three standalone trail challenges and a combined 56.1 km Quest, with varied surfaces, woodland terrain, evening running and free camping.

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.

Test your limits at the British OCR Championship in Essex. This 12km+ elite course features over 60 technical obstacles and serves as a qualifying event for both European and World Championships.

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 kilometre race at Banham Zoo featuring a lap inside the zoo and full-day zoo entry. The event supports conservation, includes a finisher medal and Race Day Village, and offers discounted spectator tickets for friends and family.

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 road marathon on scenic low traffic lanes around Halstead, marking its 30th running on 10 May 2026. The event is limited to 500 entries, is part of the Essex Road Running Championships and supports local charities.

A marathon and a half marathon at Suffolk Running Centre on 10 May 2026 with measured road courses, aid stations every 10 km and cupless arrangements; entry limits and transfers policy are specified.

Off-road 10k, 5k and junior runs at Milton Creek Country Park on 10 May 2026. The event supports the Oliver Fisher Special Care Baby Trust and includes medals, prizes, pacers and limited free on-site parking.

A self-guided 13-mile run along Letchworth's scenic Greenway trail. This is a run, not a race, due to road crossings. Finishers get a wooden medal and refreshments, with profits supporting a local youth mental health charity.

Explore the beautiful Chiltern Hills on this guided 30km trail running adventure. Enjoy 500m of ascent through woodlands and ridges with professional run leaders and a finishers medal included.

An inclusive UK trail running series offering 1K, 5K, 10K and kids races with free entry for under 16s, held at Dunstable Downs in May and Blaise Castle Estate in October 2026, with activities, food and live music.

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.

A multi-terrain 5 kilometre race at West Lodge Farm in Desborough on 13 May 2026, running through fields, woodlands and farm trails. Finishers receive a bespoke medal and a virtual completion option is available; entries close 12 May.

A measured off-road 5K on 13 May 2026, Race 2 of the seven-race Crown to Crown series, run mainly on bridleways through Willow Park with limited parking and on-course safety support.

A coastal point-to-point trail event in Suffolk and Essex offering 100 mile, 50 mile and 50 km options with GPS tracking, regular checkpoints and a mandatory kit list. Routes run mostly on soft dirt trail through protected landscapes.

An inflatable obstacle course 5K at Brands Hatch in Kent on Saturday 16 May 2026. Recent bookings show 205 in the past week and participants report good organisation and onsite support.

A timed lapped event at Mowsbury Park on 16 May 2026 offering distances from 5 km to ultra with a seven hour time limit, flexible start window and both medal and no medal entry options; places capped at 75.

Race for Life Brentwood at Weald Country Park on 16 May 2026 offers 3k, 5k and a double lap 10k across grass and woodland trails. The event is chip timed and carries a minimum fundraising target of £50.