Trail Running calendar near Harwell 2025-2026

Start the new year on trails with the Knacker Cracker 10K around Box Hill, a scenic but challenging course that finishes at Box Hill Fort. There is a Nipper Knacker fun run for kids and a Knicker Knacker ladies prize adds extra fun.

Rhino Run in Wraysbury at Wraysbury Skiff and Punting Club is a 6-hour timed running event organized by Circuit Running. The course is an out-and-back with each lap about 3.28 miles. Runners can complete from 5k up to an ultra within the ti..

Take part in Bodenham Bound at Bodenham Arboretum near Kidderminster in January, choosing 5 km or 10 km trail routes. Tackle muddy hills and wintery trails, earn a finisher medal and donut, and support Kemp Hospice and Harkaway Scouts.

Join the Penshurst Village Cross Country Run on Sunday 4 January 2026 for mud, hills and community spirit across scenic village trails. Choose a 5 mile race or a 5 mile canicross and enjoy a friendly morning for runners and dogs alike.

Guided 30 mile trail ultra from St Martha's Hill along the North Downs Way, over Box Hill and past Denbies, led by an experienced coach. Welcoming new ultra runners who can manage 22 mile training and hold about 10 min/mile.

Event overview Wild Running stages a night trail event at Denbies Wine Estate, Dorking, in the Surrey Hills. The course runs across muddy, rolling hills through the Denbies Estate and is marked for night navigation. Distances offered includ..

Scenic 43 mile ultra from Wendover to London's Little Venice that blends country trails, roads and canal towpath into a tough but rewarding city finish. GPS tracking and checkpoints keep you covered on this classic test of endurance.

Tackle Surrey's G3 run series in January and February 2026 with 10 km or 15 km cross country trail races over mud, sand, rocks and forest. Tough descents, road crossings and other trail users add variety so trail shoes are recommended.

The Northampton 10K is a well-organized running event held at Northampton Racecourse Park, featuring a 2.2 km start followed by three laps around the racecourse. The course is accurately measured and takes place on pathway terrain, offering..

Take part in Festive 5 on 11 Jan 2026, a 5 mile off road run along the River Avon through Fladbury and Lower Moor. Organised by Friends of Fladbury, this fundraiser offers free cake, spot prizes and supports local community projects.

Explore scenic off road trails around Farley Mount near Winchester with 12 km and 21 km options, chip timing and a finisher medal. Start and finish at Sparsholt College with great parking and welcoming race day support.

Enjoy scenic off road laps around Pengethley Manor and its vineyards, with a cheeky hill and rolling ups and downs. Choose distances from 5k to ultra, walk or run at your pace within a seven hour limit and earn a finisher medal.

Take on the 7 Deadly Sins 7in7, a seven day challenge at Pengethley Manor in Ross on Wye from 12 to 18 January 2026. Run or walk varied distances each day on a hilly 2.5 km off road lap and collect a unique medal daily.

The Proud Run at Pengethley Manor on January 13 invites runners and walkers to tackle laps through vineyards and a testing hill, choosing distances from 5 km to ultra. Off road, scenic and inclusive, entrants must finish within seven hours.

Lusty Run at Pengethley Manor invites runners and walkers to tackle scenic off road laps through vineyards and a testing hill. Choose distances from 5k to ultra or take part virtually with a personalised bib and medal.

Guided 10km trail run at Hankley Common with wide views and a stop at the Atlantic Wall replica. Enjoy a friendly group paced by an experienced coach with kit trials and optional post run refreshment.

On 15 January 2026 the Angry Run invites runners to tackle an offroad looped course at Pengethley Manor, choosing distances from 5k to ultra. Expect rolling hills, vineyard trails and a friendly festival atmosphere.

Tackle the Gluttonous Run at Pengethley Manor, part of the 7 Deadly Sins series on 16 January 2026. Pick 5k to ultra and brave a tough off road loop through vineyards with a hill each lap, or opt for the virtual challenge.

The Greedy Run at Pengethley Manor on Saturday 17 January 2026 invites runners and walkers to choose from 5k up to Ultra on an offroad loop through vineyards and rolling hills. Race day has hot drinks, food, free parking and a finisher meda..

Run the Maverick New Forest Gravel at Holmsley Campsite, Burley, through ancient woodland with 6 km, 12 km and 22 km routes. Enjoy scenic gravel trails, some mud and short climbs for a true forest challenge.