Trail Running calendar near Boreham 2026-2027

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.

Essex Walker offers a 26 miles figure of 8 route and an 18 miles variant on footpaths and bridleways around Blackmore. It is part of the Essex and Herts Triple Challenge and includes checkpoints, refreshments, and a finishers certificate.

A Halloween themed night time run at Irchester Country Park on 30 October 2026 offering 5k and 2k family runs, finishers medals, Halloween treats, free event photos and prizes for top 3 men and women in the 5k.

A 5 mile self navigated night trail run from The Plough and Harrow in Litlington with Halloween fancy dress, GPX navigation, trophies for best dressed and a timed but social atmosphere.

A single-loop **50K** trail race from Berkhamsted through Ashridge and along The Ridgeway, featuring 800 m of ascent, fully marked navigation, three full aid stations and a 9-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.

A night gravel trail run in Alice Holt Forest with 5 km laps and three distance options, head torch navigation, on-course outposts and on-site parking and facilities.

An evening Halloween run at Hogmoor with kids and adult loop options, varied sandy and muddy terrain, fancy dress encouraged, free parking and medals for finishers.

Forest trail races at Wendover Woods on 1 November 2026 include marathon, half marathon, 10k and a junior run over a multi-lap 10 km course with varied, hilly terrain and on-site facilities for spectators.

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.

Night trail running at Stonor Park in the Chiltern Hills on 7 November 2026 with three waymarked routes of 17 km, 13 km and 7 km. Outposts, parking, timed results and finish facilities are provided; dogs are not permitted.

A winter obstacle race in Brentwood, Essex featuring muddy courses across farmland, woodland and lakes. Distances range from about 6 km to 24 km with dozens to hundreds of natural and man made obstacles and chip timing for participants.

Take on flat, scenic laps along the Thames towpath in Walton on Thames with flexible starts and distances from 5 km to ultra. Limited places, aid stations, digital results and medals make this a friendly, festival style challenge.

Experience a scenic trail run through the Bedfordshire countryside starting from Leighton Buzzard. Choose between a classic half marathon or a metric distance featuring canal towpaths, woods, and rolling hills.

Trail running at Stonor Park in the Chilterns with three route choices of 22 km, 13 km and 7 km. Expect well marked woodland trails, steep climbs, possible wildlife sightings and outposts on the longer courses.

A supported endurance event on 7 November 2026 with a 76 km ultramarathon or 36 km run or walk from Aldershot or Petersfield to Portsmouth, featuring break stops, satellite tracking, medical cover and charity fundraising options.

A flat Fens Way event from Cambridge toward Ely and Kings Lynn offering a marathon, 50 mile ultra, relays and a 100 mile option, with GPS tracking, generous cutoffs and on-course support.

A trail event in Windsor on 8 November 2026 offering a 10K and a half marathon on flat off road trails from Alexandra Gardens. The event features chip timing, race photos, post race goodies and an event village.

A commemorative 7 hour Time Challenge at Wraysbury Skiff and Punting Club on the River Thames offering distances from 3km up to 50km on signed mixed terrain laps. Finishers receive medals and distance pins and aid stations include vegan opt..

A Remembrance Sunday trail event in Brightlingsea on 8 November 2026 with live Last Post and a two-minute silence during the race. A looped course offers 10km, half, marathon and a six hour timed option with on-course aid stations.