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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.

September 2027
Trail half marathon, 10K and junior races at Remenham Farm beside the Thames, with mixed tarmac and trail loops and an event village.
An 81 mile single loop ultra along Bedfordshire's Bunyan Trail with 24 hours to complete, runnable terrain, seven aid stations, live tracking and medical support.
A 10 km trail run around Sandridge, St Albans, starting at Woodcock Hill on 12/09/2027 with entry listed at GBP 23.
A lapped 5 km trail event in Hitchin offering seven hours to complete as many laps as desired, plus a Mini Mile, virtual option and an event village.
Trail event near Tring offering 10 km, 27 km and 50 km routes through the Chilterns with marked trails, checkpoints, medical cover and fundraising for Humanity Direct.
Autumn trail races on Royston Heath offering half and quarter marathon distances, with strong club participation and volunteer support in sunny conditions.
Looped trail options from 10K to approx 100 km around the Chilterns with covered rest stops, GPS tracking and on-site camping at Henley Basecamp.
A technical off road trail race in Marlow on 26 September 2027 through Chiltern woodlands and chalk ridges, with sustainable race practices and chip timing.
October 2027
A fully marked 100K trail race around the Chiltern Hills with six checkpoints, GPS tracking and mandatory kit requirements.
Riverside out and back running event in Barnes along the Thames Path offering 10 km, half marathon and marathon distances with marshals and medical support.
Backyard ultra at Turvey House with repeated 4.167 mile (6.7 km) loops each hour, offering solo, paired and 8 hour capped options plus chip timing and aid stations.
Trail race in the Chiltern Hills near Marlow and Henley on Thames with 5 km and 10 km routes, community fundraising, medals and on site refreshments.
A 30 mile out and back ultra along the River Stort with mostly flat riverside trail, checkpoints about every five miles and an eight hour cut off.
A 10 km road race in Wolverton, Milton Keynes on 28 October 2027 with tiered entry fees and registration opening 29 October 2026.
November 2027
Fireworks-themed marathon and half marathon on a lapped lakeside course at Caldecotte Lake with basic support and a finisher's medal.
Point to point Half Marathon along the Grand Union Canal from Cowley to Cassiobury Park, Watford, on towpaths, trails and woodland. Entry from £35.
Trail races through Alexandra Gardens with 10K and half marathon options, chip timing, free photos and support for Brain Research UK.
December 2027
Riverside trail runs from Alexandra Gardens in Windsor offering 21.8 km and 15.7 km chip timed routes with a finisher medal and on course refreshments.
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