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Trail Running Calendar near Dunstable Downs 2026-2027

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Explore the top trail runs near Dunstable Downs for 2026-2027! We've gathered 136 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
A single-loop 50K trail race from Berkhamsted through The Ridgeway and Ashridge, with 800 m ascent, fully marked navigation and three on-route aid stations.
An evening timed run at Riverside Park in St Neots on Halloween offering laps of a 5.3 km out and back course. Head torches are compulsory and all participants receive a finishers medal, with distances from one lap to ultra.
November 2026
Autumn trail races at Wendover Woods offering Marathon, Half Marathon, 10k and Junior Run on hilly, multi-terrain loops with on-site facilities and a six hour cut off.
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 at Stonor Park with three marked routes of 7 km, 13 km and 17 km, timed results, one outpost on middle and long routes and no dogs allowed.
Experience a scenic trail run through the Bedfordshire countryside with a choice of a half marathon or metric half marathon along the Grand Union Canal and woodland paths.
Trail races of 7 km, 13 km, and 22 km through Stonor Park and the Chilterns, with steep sections, marked courses, and outpost support.
Trail event in Windsor on 8 November 2026 with chip timed 10K and half marathon from Alexandra Gardens, featuring medals, free photos and an event village.
A three day, 84 mile ultra along the Ridgeway from Buckinghamshire to Wiltshire with overnight stops, accommodation options and checkpoint support.
A 50 mile trail race in Wendover Woods made of five 10 mile loops with 10,000 feet of climb, nine aid stations, medical support and a 15 hour cut off.
Lap based timed run along the Grand Union Canal in Harefield on 14 November 2026, using a 3.28 mile lap with distances from 5 km to ultra.
A multi-terrain 5K and 10K race in the Chiltern Hills on 15 November 2026, organised by the Radnage Primary School PTA, with water stations, first aid, a village hall cafe and proceeds supporting the school.
A countryside walking and running event from Barton-le-Clay with 12, 18 and 26 miles routes across field paths, tracks and woods, with checkpoints and prepublished route files.
A six-hour lap event at Salcey Forest where participants choose how many 3.5-mile loops to run. Dogs and rucking are allowed, a reduced parking rate is available, and there are options for charity donations or a tree token instead of a medal.
A fully marked 50.3 km trail race in the North Chilterns from Putteridge Bury, featuring ridgeline running, four aid stations and a nine hour time limit.
Trail run from Alexandra Gardens in Windsor along the Thames with chip timing, two distance options, riverside views and finisher medals.
Half day 6 miles 10 km trail run in the Chiltern Hills with a private Tring Brewery tour, tasting and a bottle or a pint included.
A timed, lapped Cakeathon at Mowsbury Park on 22 November 2026 offering flexible starts, a flat 5.3 km lap, distances from 5 km to ultra, and a seven hour limit.
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