Trail Running calendar near Grafham 2026-2027

A flat 10 km trail run through Thursley National Nature Reserve near Thursley, Surrey. Group runs include dusk and night options with headtorch guidance, an entry fee of £22 per person, and kit and torch support available.

A six-hour trail event at Beacon Hill Country Park on a **3.3 mile** loop with an uphill first half and downhill return; participants choose how many laps to complete and can run with dogs on short leads.

Fitstuff G3 No.3 takes place on 27 February 2027 at Newlands Corner near Guildford and offers 15 km and 10 km road running options with individual and bundled entry fees. It is organised by G3 Series.

A 42-mile trail race from Chipping Ongar to the ancient Chapel of St Peter-on-the-Wall, following an old pilgrimage route through rural Essex. Mostly off-road and often muddy, the route is waymarked with GPX support, four outdoor checkpoint..

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

A 10 km mixed-terrain run from Windsor & Eton Brewery along towpaths and parkland, with staggered starts, a pint cup and free drink at the finish, chip timing and downloadable race photos.

Guided 10 km trail run around Silent Pool near Guildford, following parts of the North Downs Way and Netley Heath forest. Sessions run at dusk or at night with headtorches in a led group and a recommended pace of about 10 min per mile.

Trail races of 10k and half marathon around Pitsford Water from Brixworth Country Park with marked routes, water stations and on course marshals. Entries have age limits, a four hour cut off and preordered parking and merchandise options.

A night time trail 10K at Coombe Abbey Park that requires a head torch and runs across woodland, meadow and fields. Entry fees increase in February and the course includes on course water with biodegradable cups.

Hare Challenge is a running event at Coombe Abbey Park on 9 March 2027, organized by Big Bear Events. The listing shows a single entry price of £40 and an event page with an accompanying video.

Autumn edition of the Run the Wild half marathon is a guided 13 mile trail in the Chiltern Hills with about 300 m ascent, grouped pacing, run leaders, a midroute refreshment point and a finisher’s medal.

Two trail race distances, 25 km and 50 km, at Harrold-Odell Country Park in Bedford on 13 March 2027, organised by Thunder Races with early-bird and standard fees and instalment options.

Trail event at Hyde Hall Farm offering 10k, half, full and ultra distances with lap-based courses, water at the lap point, secure parking and a bespoke finisher medal. The event is cupless so bring a refillable cup or bottle.

A trail marathon and 20 mile trail run on an anti clockwise circular route through track, maintained trail, fields and woodland, with marked junctions, GPX files, staffed checkpoints, on course medic cover, medals and prizes.

TrailX Women Run is an all female trail event at Culden Faw Estate near Henley on Thames celebrating International Women’s Day, offering 3 km, 6.5 km and 13 km chip timed courses with medals, prizes and on site refreshments.

A novelty wife carrying race in Dorking featuring a 380 m out and back up The Nower with obstacles and a Splash Zone. Carried participants must meet a 50 kg minimum and wear helmets while competitors are encouraged to wear fancy dress.

A hilly 13.1 miles out-and-back trail from Dorking to Leith Hill Tower with about 1,800 feet of ascent, water stations and marshals. Race HQ is The Priory School and entry includes a postrace cooked breakfast and a reusable medal.

Three circular routes of 14, 20 and 30 miles around Sevenoaks with new sections and countryside views, indoor checkpoints and hot food at the finish; entries are limited and open from 1 October 2026 to 2 March 2027.

Forest trail races at Sherwood Pines on 14 March 2027 offering 20 mile, half marathon, 10k and a junior run. Multi terrain undulating routes with route maps and GPX files, bespoke medals, free photos and prizes.

Twelve consecutive days of timed riverside running in Walton on Thames with multiple distance options, collectible daily lantern medals, finishers shirts, and a Double-Down option to run two half marathons each day.