Trail Running calendar near Harwell 2026-2027

Choose a scenic 10k or shorter 5k through the Chiltern Hills around Frieth, combining woodland paths and country roads. Expect rolling climbs and panoramic views for a rewarding, hilly challenge for road and trail runners.

The Titsey Trail 10k is a community running event held on Sunday, 11th October 2026. Organized by runners for runners, it raises funds for a variety of local charities.

Experience the scenic Cambridgeshire countryside with 10k and half marathon trail races around Grafham Water. These fully marked and marshalled routes offer beautiful reservoir views and a variety of local tracks.

The FOOBS Trail and Fun Runs return in October. Choose from a chip timed 10K, 6K, or a family friendly 2K fun run through the countryside near Old Basing. The event supports local schools through community fundraising.

Take on an ultra-distance trail run along the dramatic Jurassic Coast. Choose between a 102 km or 54 km route exploring the Isle of Purbeck, with fully marked courses and support outposts. The event is based at Burnbake Forest Lodges in Cor..

The Autumn 100 is a 100-mile trail race from Goring, using the Ridgeway and Thames Path in four 25-mile spurs. It features 16 aid stations and can be fast in good conditions, but runners must also prepare for long hours of darkness and clas..

Event Overview The Gatliff Marathon is an annual challenge event offering walkers, joggers, and runners a choice of 25 km or 50 km distances. It takes place on rural footpaths and tracks in the Kent, Surrey, and Sussex countryside. The even..

Blaze the Biblins on 18 October 2026 is a scenic 10k trail race through ancient woods and riverbanks near Ross on Wye. Expect technical single track, climbs including the notorious Demon hill, and a lively village finish.

Roughly 12K trail run on bridle paths and the Imber Range near the Westbury White Horse on 18 October 2026. Limited to 200 places so book early for a bespoke finisher medal and category prizes.

Keynsham Dandy is an off-road race on Sunday 18 October 2026 around Keynsham. The roughly 12.5 mile course starts at The New Inn and includes the revived Compton Dando route with a stream feature.

A Halloween-themed running challenge over seven days in Ross-on-Wye. Choose your distance each day on a tough off-road course to earn unique spooky medals. You can run in-person or virtually from anywhere.

The Witches Whisk is a Halloween-themed running event with a flexible distance format. Choose from 5k to ultra and tackle a hilly, off-road course at Pengethley Manor. It's open to runners and walkers, with a 7-hour time limit and a virtual..

The Scary Scamper is an off-road Halloween run with a unique twist. Choose your distance from 5k to Ultra and see how far you can go within a 7-hour limit at Pengethley Manor. You can also join the spooky fun virtually.

The Creepy Crawl is a Halloween themed event where you choose your own distance, from 5k to Ultra, and have 7 hours to complete it. The tough off road course winds through the grounds of Pengethley Manor. A unique spooky medal awaits all fi..

The Ghostly Gallop is a Halloween-themed running event with a spooky twist. Choose your distance from 5k to Ultra and tackle a tough off-road loop at Pengethley Manor, with a 7-hour time limit. You can also run virtually from anywhere and e..

The Petrified Pootle is a Halloween-themed running event with a flexible format. Choose your own distance and take on a tough, off-road course at Pengethley Manor. A 7-hour time limit makes it accessible for walkers and runners alike.

A 47-mile point-to-point ultra along the Thames Path from Iffley to Henley-on-Thames. The course mixes riverside trails with road sections and is a UTMB index race. Support includes five aid stations, GPS tracking, and a baggage transfer.

The Spooky Sprint offers a choice of distances on a tough off-road course at Pengethley Manor. You have 7 hours to complete your 5k, 10k, half, full, or ultra marathon. A virtual run option is also available, complete with a Halloween-theme..

A 30-mile out-and-back ultra along the River Stort and Lee navigations, mostly flat grassy trail with checkpoints about every 5 miles and four- and eight-hour cut-offs. Based at Hockerill Sports and Social Club with medals and trophies for..

The Zombie Shuffle is a Halloween themed off road run at Pengethley Manor. Choose your distance from 5k to ultra, with a 7 hour time limit. A virtual run option is also available.