Trail Running calendar near Aylesbury 2026-2027

ATW Grafham 5K and 10K at Grafham Water on 25 Oct 2026 offers timed 5 km and 10 km races with camping option, charity fundraising and on site parking.

Looped races at Chalfont Park and Chalfont St Peter let runners choose distances from a 7K loop to multi lap ultras. Aid station, clear course marking, crew support and medical cover are provided.

A countryside walking event from Blackmore with a 26 mile figure of eight route and an 18 mile option, forming part of the Essex and Herts Triple Challenge.

A guided 10 km trail run through High Lodge in Thetford Forest, led at a conversational pace with group placement by ability. Mostly flat mixed terrain with a couple of small hills and practical tips on trail running.

Duathlons and 5km and 10km trail runs in Salcey Forest on 25 October 2026 with fully off road routes and live chip timing.

Night-time Halloween run at Irchester Country Park with 5k and 2k family routes, themed marshals, medals, free photos and charity donation options.

A fully marked single loop 50K trail race around the Chilterns starting and finishing in Berkhamsted, with three aid stations, mandatory kit and a nine hour cutoff.

A Halloween themed *6.66 km* trail run in Chelmsford on 31 October 2026 with GPX/Strava route support, fancy dress prizes and a brewery finish offering a medal, drink and crisps.

Night laps by head torch through Alice Holt Forest with three route lengths, one refuel outpost per lap, free parking and a metal finisher medal.

Evening Halloween trail run at Hogmoor with kids 3.3K, adult 6.6K or 10K options, a canicross race, spooky features and medals for finishers.

A timed, lap-based run along the Itchen Way in Winchester with 2.62 mile loops, a seven hour limit, flexible start times, an aid station with vegan options, and a bespoke finisher's medal.

Coastal trail running on West Wittering Beach with 15.3k, 10k and 5k routes across sandy flats and short trails, chip timing, water stations and a finisher medal. Canicross is accommodated and the course is clearly signposted.

Trail races in Wendover Woods on hilly, multi terrain forest loops with marathon, half marathon, 10 km and a junior run plus on site amenities and parking.

A 10 mile off road trail in Stonehouse near Stroud on 1 November 2026, starting with about one mile uphill followed by nine miles of undulating muddy trails. Canicross runners are welcome and there is a 2 hour 30 minute cutoff.

A chip timed seven mile country race through Garendon Park on 1 November 2026, with prizes, commemorative t shirts and a separate fun run with day entries.

A 7 hour time challenge in the Northampton Washlands with flexible distances from 3 km to 50 km, medals, distance pins, goody bags and aid stations.

An after dark multi terrain 10 km and 5 km event in Leigh on Sea with chip timing, mandatory headtorches and sustainably sourced finishers medals.

Weekend trail event at Rosliston Forest in Derbyshire featuring muddy, technical forest terrain and an entry fee of £41.50.

A 5 mile out and back night and dawn race through the 422 m Oxendon Tunnel with mood lighting, required headtorches, medals and finish line refreshments.

Two days of marathon and half marathon races around Caldecotte Lake in Milton Keynes on 6 and 7 November 2026, with multi-lap clockwise courses, on-course water and toilets, enforced time limits, and bespoke finisher medals.