Trail Running calendar near Marlow 2025-2026

Take on Plain Crazy Winter, a 12.5 mile road and trail challenge on 29 December with hilly, scenic and wintry terrain and a bespoke finisher medal. The race supports the Royal British Legion and entries are limited, so book early.

Light up the Downslink for the Darklink 10k Headtorch Run, a flat out and back from Shoreham Toll Bridge to Bramber with headtorches required. Enjoy a midpoint aid station and a finisher Darklink medal for a glowing end to the year.

Finish the year with the River Thames Run, a six hour timed challenge along a flat, scenic out and back route beside the Thames. Choose a 3.28 mile lap, 5k, 10k or go further up to ultramarathon distance while enjoying club facilities.

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..

East Hanningfield Trail Marathon is a 95% off-road, circular trail race around the village of Danbury, starting and finishing at East Hanningfield Village Hall. It is described as a narrative race with no marshals or arrows, requiring compe..

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..

Run the G3 Surrey trail series at Newlands Corner, Guildford and Hound House Road on 10 Jan, 31 Jan and 28 Feb 2026. Choose 10km or 15km over scenic forest trails with hills, mud and tricky descents for a rewarding challenge.

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.

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.

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.

Join the Windmill Way Wander on 17 January in Bury St Edmunds for scenic road running through quaint villages and rolling hills, with distances from 5k to ultra. Limited to 300 entries, the event offers friendly aid stations and a welcoming..

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.

Join Ryde Harriers for a three race cross country series at Smallbrook Stadium in Jan and Feb 2026, with a testing 10 km course and a 6.5 km youth option. Expect varied terrain, team trophies and friendly club racing with limited entries.

Dirt Run is a trail running series across two rounds in Northamptonshire at Irchester in January and Brigstock in February. Tackle mixed trails and a notable hill, pick short or longer distances and earn a unique finisher medal.

Take on the Riverbank Rollick a scenic 9.6 mile off road trail run along riverside paths, through woodland and a stream crossing. Earn a metal finisher medal that links to two other Thornbury Running Club races for a collectable series.