Trail Running calendar near Westhumble 2025-2026

Race to the King is Threshold Trail Series’ king-sized ultramarathon along the South Downs Way and Monarch’s Way. On 20 June 2026 at West Dean Gardens, runners can choose from four distances: Monarch’s Loop 30km, Coastal 50km, Castle 50km, and two non-stop options—80km and 100km—that stitch the two..

The Centaur 100 Mile Ultra, hosted by Phoenix Running, is a unique 100-mile trail running event held at Denbies Wine Estate in Dorking, Surrey. Designed for both seasoned ultra runners and first-timers, the race features a flat-ish, single 1-mile loop course through the scenic wine estate trails. Pa..

The Phoenix Denbies Marathon & Half Marathon, held at Denbies Wine Estate in Dorking, Surrey, offers a unique off-road trail running experience on a flat-ish 1-mile loop with slight inclines. Scheduled for June 2026, the event features flexible start times over a 30-hour window, allowing participant..

Three Shires Way Ultra & Marathon is Race Harborough’s event, offering a 50-mile Ultra and a Marathon along the Three Shires Way through Buckinghamshire, Bedfordshire and Northamptonshire. The routes run through rural landscapes and woodlands, with a well-marked bridleway for navigation. The Ultra s..

The Midsummer Munro will take place in Walton on the Hill on Sunday 21 June 2026. You can run 13 miles.

The Summer Solstice Challenge - Colchester will take place in Colchester on Sunday 21 June 2026.

Dunstable Downs Half Marathon is a scenic trail race set in the National Trust’s Dunstable Downs estate. In its sixth edition (2026), the 21.2km course with about 450m of ascent mixes ridge views, fast descents and climbs. The route begins at the National Trust Countryside Centre, visits Tree Cathed..

The Martian Race is scheduled for 21 June 2026 at Horsell Common, Woking, Surrey. The event is organised entirely by volunteers and proceeds are distributed to local charities selected by the Woking Lions. The 2025 event raised over £20,000 for local charities. The race is in its seventh year and t..

Run The Seasons at Cowdray is a late-June running event on the Cowdray Estate near Midhurst, with race HQ and parking at the Cowdray Farm Shop & Café. Runners can choose from 5km or 10km routes, including a dog-friendly canicross option, circling the Cowdray Polo Lawns and heading out to Ambersham C..

The Colworth Marathon Challenge is a three-day running event held on the Colworth Estate in North Bedfordshire, UK. The event comprises three separate races that together total the marathon distance of 26.2 miles. It is scheduled across three consecutive days in late June 2026 and includes free cam..

The Zigzag Cock-A-Doodle Dawdle is a trail running event held at the exclusive Hyde Hall Farm in Hertfordshire (SG9 0RU). Returning for its third year, it offers multiple distance options including 5k, 10k, 15k, Half Marathon, Heavy Half Marathon, Full Marathon, and Ultra Marathon. The course featur..

The RunThrough Marlow Trail Run is scheduled for Sunday 28 June 2026. The event base is Marlow Rugby Union Football Club, Riverwoods Drive, Marlow SL7 1QU. Group bookings for six places are listed at £150. Half Marathon - £32 (+£12 for event T-shirt) 10K - £28 (+£12 for event T-shirt) 5K - £26 (+£..

TrailFest - Salcey Forest takes place on Sunday, 28 June 2026 at Salcey Forest (postcode NN7 2HX), a Forestry England site near Northampton. The event offers four distances: 10K Half marathon Marathon 50 km The routes use similar sections of the forest and follow well maintained pathways. There..

Devil's Punchbowl 10km is a guided trail run around the Punchbowl in Hindhead, Surrey. The 10km route follows scenic trails with several hills, run at a group pace rather than a race. It suits those new to trail running or who prefer running with others, especially at dusk or night.Top views are pau..

The Full Essex Way Ultra is an 82-mile ultra-marathon along the full Essex Way trail. The route starts at Epping tube station and finishes at the high lighthouse in the port of Harwich. The event is scheduled for 3-4 July 2026. The course uses mixed terrain: trail, footpath, track and road. Total e..

Serpent Trail is a long-distance trail-running festival set in the South Downs National Park, centered at Petersfield Rugby Club in Hampshire. Runners can choose from five distances—100km, 75km, 50km, 20km and 10km—with the 100km route offering about 1785m of ascent, nine checkpoints and an 18-hour..

The Bishop's Stortford Mitre 10k, 5k, and 1k is a community road race held in East Hertfordshire, starting from Jobbers Wood sports ground near Much Hadham. Open to all ages and abilities, the event features professionally measured 10k and 5k courses on traffic-free country lanes with gentle undulat..

Fen Gallop 2026 is a scenic running event held in Willingham, Cambridgeshire, featuring flat, multi-terrain courses along country roads, footpaths, and bridleways. Participants can choose between a 10K race or a shorter 4-mile option, both offering chip timing. The event welcomes runners aged 15 and..

Chiltern Ridge Half Marathon is a 21.1km trail race along The Ridgeway National Trail in Buckinghamshire, starting and finishing in Wendover. The course runs from Wendover to Whiteleaf Hill Nature Reserve near Princes Risborough, with a forested loop en route before returning to the start. It is a f..

Thursley Common 10km, run by Running Adventures, is a 10-kilometre trail event through Thursley National Nature Reserve (325 hectares) in Surrey. The route winds over open heathland, peat bogs, pine and deciduous woods, including the famous boardwalk crowned Britain's Favourite Path. Described as th..