Trail Running calendar near Old Warden 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 looped trail at Beacon Hill Country Park on a 3.3 mile course with a sharp climb out and a descent back, flexible lap distances, dog friendly and GPX available.

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 30 mile non-competitive group trail run from Harting Down along parts of the South Downs Way, passing Beacon Hill, Cocking Down and Kingley Vale. Led by an experienced guide and recommended for those who have run at least 22 miles in trai..

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 single lap undulating 10k trail race at Hadleigh Country Park with steep hills, deep mud, technical terrain and mandatory trail shoes.

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.

Guided trail half marathon in the Chiltern Hills: about 13 miles with grouped pacing, a mid-route refreshment point and a finisher’s medal.

Trail races of 25 km and 50 km through Harrold-Odell Country Park near Bedford on 13 March 2027, organised by Thunder Races.

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 24 hour endurance format at Alice Holt Forest where runners repeat a 6.7 km loop each hour, finishing laps within 60 minutes. Wooden medals are given to finishers and a wooden trophy is awarded to the overall champion.

Women only trail runs at Culden Faw Estate, Henley on Thames, on 14 March 2027 with 3 km, 6.5 km and 13 km options, chip timing and finisher medals.

A quirky partner carrying race on a 380 m out and back course up The Nower in Dorking, with weigh in rules, helmets required and proceeds donated to a local food charity.

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.

A Kent LDWA challenge with three new West Kent routes, indoor checkpoints, limited entry and a 30 mile option with 4200 ft ascent and an 11 hour limit.