Trail Running calendar near Sudbury 2025-2026

Join a guided Box Hill Vertical KM group run near Dorking for a tough 12.5 mile route with about 1000 m of climb through woods, heath and open fields. Enjoy expert guidance, technical terrain and a social finish.

The Riverside Marathon & Half Marathon, organized by Phoenix Running, takes place in Walton on Thames, Surrey, along the scenic River Thames towpath. This UK Athletics certified event features flat, fast, and accurately measured courses wit..

Hit the trails at Stonor Park for The Maverick Original Oxfordshire on 29 November 2025, an acclaimed off road running festival from Maverick Race. Choose from 7 km, 11 km or 22 km routes and enjoy a spirited course with great atmosphere.

Maverick Dark and Maverick Original in Henley on Thames offer scenic off road trail races with multiple distances for all abilities. Expect muddy singletrack, rolling hills and a lively festival atmosphere for a fun day of trail running.

Join a guided 13 mile trail run around Guildford's Surrey Hills, visiting St Martha's Hill, Shere and the North Downs Way. Enjoy a friendly group pace, kit support and optional post run refreshments.

Event overview The St Andrews Day Challenge is a timed trail event on 30 November 2025. Participants choose between a 6-hour or a 4-hour timed option and run as many laps of the circuit as they can within their chosen time. The course uses..

Run 26.3 miles over five laps around the scenic Colworth Estate near Sharnbrook on 30 Nov 2025. Open to solo runners and teams, this intimate trail and road loop has drink stations but is cup free so bring a bottle.

Join Freedom Racing on 7 December 2025 for a scenic 50k through the Surrey Hills, fully signed with live timing and generous aid stations on the out and back route. There is a 10 hour time limit and a free TRIBE bar at registration.

Run a scenic 10 mile trail around Grafham Water, weaving through woodland, Dragonfly Pond and Sanctuary Bay before a final mile along the dam wall. Canicross runs in a separate wave so you can bring your dog on a lead.

Push your limits at ZigZag Bauble Bimble, a 4 or 6 hour timed multi lap running challenge at Ferry Meadows. Tackle a scenic mixed terrain loop for distances from 5 km up to marathon and ultra, with aid at base camp and a finisher medal.

The Trifarm Winter 10k is the final round and championship decider of a four race trail series, mostly off road through woodlands near the river. Enjoy a scenic winter trail challenge on footpaths and bridleways with a friendly vibe.

Enjoy a scenic 10 km trail loop around Rye Harbour Nature Reserve at Winchelsea Beach, racing with a friendly small field and marshalled course. Stay for tea and cake and chase prizes for first male and female finishers.

Join a regional colour coded orienteering event at Highwoods Country Park, Colchester on Sunday 7 December with courses for all abilities up to a 7.0 km Blue course. Enjoy woodland and grassland terrain, waterproof maps and a friendly vibe.

Tackle the Winter Downs 200, a 200 mile continuous trail loop around south England, with up to 96 hours to finish. Enjoy live tracking, staffed aid stations and classic buckle finisher rewards on a scenic mix of trails and roads.

Take part in the Essex Vets XC Championships on 13 December 2025 in Epping Forest for a tough and scenic 8k on forest trails. Veteran races and team prizes across age groups; entries online only until 7 December.

Middlesex Cross Country Championships return to Hillingdon Sports and Leisure Centre in Uxbridge on Saturday 13 December 2025. Youth and senior races from 2k to 12k, chip timed, open to clubs, schools and individuals.

Choose a 6 hour or 4 hour timed challenge at Brandon Country Park with 5.3 km multi lap loops through gravel paths and grassy trails in Thetford Forest. Perfect for lap lovers, with an aid station and a bespoke event medal to celebrate your..

Mince Pi Run - races of 2 decimal places is a 14 December 2025 off-road event at Shalford Park, Guildford. Participants choose from 3.14 to 31.4 miles (1–10 laps) on a scenic, mostly flat course with one or two hills. A Pi marathon option a..

Enjoy a festive half trail through Suffolk woodlands, meadows and quiet lanes on Sunday 14 December 2025. Expect an eco medal and mince pie at the finish, friendly trails and timed results in a relaxed winter race atmosphere.

The Salcey Forest Christmas 10K, 5K & Junior Fun Run is a festive trail running event held in Salcey Forest, Northamptonshire. Set amidst beautiful, tree-lined woodland paths, the race offers a virtually flat, mixed-terrain course that can..