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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 138 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
A fully marked single loop 50K trail race around the Chilterns with three checkpoints, a 9 hour limit and start finish at Berkhamsted Cricket Club.
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
Trail races at Wendover Woods offer marathon, half, 10k and junior distances on hilly mixed forest trails with views from Haddington Hill.
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 ultramarathon around the North Chilterns from Putteridge Bury, with four checkpoints, village crewing points and a 9 hour time limit.
A chip-timed trail run from Alexandra Gardens, Windsor, along the Thames Path with two distances, riverside views, medals and on-course support.
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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