Trail Running calendar near Harrow 2025-2026

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.

The Wallop is a scenic 21k timed trail race through Farleigh Wallop Estate, winding along narrow woodland paths, wide gravel tracks and open fields. Enjoy marshalled support, a bespoke finisher medal and post race mulled wine and mince pies..

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 the Marton Mile on Sunday 30 November 2025 for a relaxed one mile walk jog or run along the flat traffic free Lias Line Greenway near Marton. This family and dog friendly community fundraiser supports Shelter and welcomes all paces wit..

Event overview Winter on the Downs is a pair of single-loop trail ultras around the trails of East and West Sussex. Both races start and finish in Helen Garden, Eastbourne. Distances offered: 55 miles 100 miles The route begins over Beach..

Scenic trail runs from Plumpton Racecourse across the South Downs with ridge top views to the sea. Choose 9, 12 or 22 km with chip timing, water stations and a finishers medal; plastic free event so bring a reusable cup.

Join a magical evening run through parkland past the illuminated Cowdray Ruins at the Cowdray Winter Night Run. Head torches are mandatory and there are 5 km and 10 km distances plus dog friendly canicross and kids races.

Take on the Salisbury Plain Winter Edition on 6 December for a scenic, fully marked trail challenge over Half or Marathon distances. Enjoy well stocked aid stations, marshals and finisher medals as you tackle crisp winter terrain.

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 Mince Pie 10 is a festive 10-mile race held in Peacehaven, East Sussex, organized by Seaford Striders. The multi-terrain course features about six miles of farm tracks and bridleways, with the remaining four miles on quiet roads, includ..

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.