Trail Running calendar near Harwell 2026-2027

Experience a scenic trail run through the beautiful Hertfordshire countryside starting in the village of Sandridge. This event features a 10k route near the historic city of St Albans with a finish at the local primary school.

TrailFest at Holdenby House offers traffic free woodland running across four distances from 10K to 50 km, held on estate trails with free grass parking and specific rules on dogs pacers and spectators.

An annual trail event on rough tracks around Ashtead Common offering a 10K and a 2k kids run while raising funds for local charities. The undulating course forbids earphones and encourages low impact travel to the nearby train station.

Experience an annual fun run at Barton Abbey in Oxfordshire featuring 10k and 5k courses on undulating terrain. Join several race distances or a flexible family fun run to support the maintenance of Steeple Barton Church.

SOX 10 km on 13 September 2026 at Ridgeway View Campsite near Wallingford features a multi terrain 10 km and a canicross 10 km, finishers get a medal, pint cup and free drink while fundraising supports the Thames Valley Air Ambulance.

A 10 km forest run on 13 September 2026 around Moreton Forest, featuring mixed tracks, undulating terrain, stiles and a stream, with the final kilometre on a quiet country road. The event is licensed and all finishers receive a medal.

Timed laps on a 5.3 km riverside course along the Thames allow runners to build distances from 5 km up to ultras. First 50 entries receive a black and yellow plushie and a Feisty mini me medal; a no medal option is available.

A 7-hour lapped trail event near Hitchin with a 5K loop, event village and a Mini Mile for children; organised by Run Strong with a virtual option and part of proceeds going to charity.

A single-loop 50 mile trail through the Chiltern countryside with about 5600 ft of climb, based at Goring Village Hall in Oxfordshire. The route passes historic villages and includes five aid stations, a marked course and medical support.

A single-stage trail race of about 47 miles along the Cotswold Way from Chipping Campden to Painswick, featuring steep climbs, varied surfaces, on-course support, live tracking and a finishers medal.

Test your endurance at Wyre Forest in a unique hourly loop challenge where you choose your distance. Complete the 6.7 km forest circuit every hour to stay in the race until only the Lone Wolf remains.

A single stage, approximately 102 mile trail race along the Cotswold Way from Chipping Campden to Bath, with a 32 hour completion time and route markers, support stations and medical cover on the course.

MacTuffX Watford on 19 September 2026 offers solo, doubles and relay entries over two interval formats, 10x400m and 10x800m. All entrants must be aged 18 or over and fees vary by category.

Run Wytham Woods offers 5K, 10K and a 1 mile family fun run through Wytham Great Wood near Oxford on September 19th 2026. The event is organised by the Eynsham community with local partners and a sponsor.

A trail running event at Hyde Common in the New Forest on 20 September 2026 offering 18 miles, marathon and 50km ultramarathon routes with marked courses, multiple aid stations, a bespoke finisher medal and a tree-planting option.

Trail races near Clipston on Sunday 20 September 2026 include a Half Marathon and a Country 5 mile route across bridleways and footpaths. Medals and homemade cakes are provided for all finishers.

A looped technical trail in the New Forest with a Grade I listed manor house backdrop. Runners choose distance on the day from 5K up to ultra marathon and receive a medal after one loop.

A marathon and half-marathon along the Ouse Valley Way in Huntingdonshire on 20 September 2026, finishing at Earith on mostly flat grass, gravel and tarmac paths. The races are registered with the Trail Running Association and insured under..

One More Lap for Kids' Village takes place at Stowe Field in Lichfield on 20 September 2026. The event is listed with a team entry option and the published entry fee is 0.00 GBP.

A trail marathon and a 16 mile race around the Purbeck Hills and Jurassic Coast on 20 September 2026, licensed by the Trail Running Association and supporting local charities with required safety kit for participants.