Harpenden
Trail Running Calendar near Harpenden 2026-2027
Explore the top trail runs near Harpenden for 2026-2027! We've gathered 155 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A backyard ultra at Turvey House where runners complete a 4.167 mile (6.7 km) loop each hour; failing to start a loop on the hour means elimination. Entries include solo, paired teams alternating loops, and an 8 hour day cap.
A half marathon and 10K through Epping Forest, London on 10 October 2026, run on marked woodland trails with aid stations, chip timing and an eco friendly focus.
A 10 km undulating multi-terrain race from Buckingham Town Centre through Stowe National Trust gardens and countryside, with medals for finishers and local charities supported.
A scenic approximate 15 km trail race in Tring on 11 October 2026, routed through Ashridge Estate, the Ridgeway and Pitstone Hill with water stations and finish facilities.
Timed, lapped run at Old Warden on 16 October 2026 with flexible start times, distances from one 3.28 mile lap to ultras and a seven hour limit.
A guided 10 mile trail through Chilterns waterways and reservoirs, passing Britain’s oldest post windmill, with trail instruction and a 2026 finisher’s medal.
An off road cross country race of about 6 miles across Manor House Farm in Hardwick village with varied terrain and water crossings. Entries are limited to 300 runners and a minimum age of 17 applies.
A lap-based timed charity run in St Neots on a 5.3 km out and back course, held in partnership with a local school and the charity KiSS. Multiple distance options are available and Phoenix Running will donate five pounds from each entry to support Ki..
Trail runs of 10 km and 5 km around Blackpit Brewery on October 18 2026, using private multi terrain trails through woodlands and estate tracks. Entrants receive a medal, a pint cup and a free drink at the finish.
A 30 mile out and back ultra along the River Stort and Lee navigations on the Hertfordshire Essex border, mostly flat grassy and gravel trail with checkpoints every 5 miles, electronic timing, medals for finishers and trophies for top three men and w..
Looped races at several Buckinghamshire venues let runners use 7K or 10.8K loops to build distances from 10K up to ultra, with aid stations, crew support and medals.
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.
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 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.
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.
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.