Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 131 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A scenic approximately 15 km trail race in Tring on 11 October 2026, running through Ashridge Estate and the Ridgeway with marshals, water stations and post-race facilities.
A monthly five mile run in Wimbledon organised by Thames H&H running club, held on the second Sunday of each month with online entries and published results.
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 miles through the Chilterns along canals, reservoirs and past Britain’s oldest post windmill, with trail instruction and a finisher’s medal included.
A lap-based timed run at Old Warden on a flat 5.3 km course with flexible distances, a 7 hour limit, and a no-medal lower cost option.
A night time closed road 10K in East London from Silverworks Island through the Royal Docks and London City Airport runway, women focused and currently sold out.
Off road cross country race of about 6 miles around Manor House Farm in Hardwick, with water crossings, limited to 300 runners and minimum age 17.
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..
A charity tower climb at 22 Bishopsgate, London covering 58 floors and over 1,500 steps with a fundraising target and included t-shirt and medal.
A flat 30 mile out and back ultra along the River Stort with checkpoints about every 5 miles, electronic timing, finishers medal and trophies for top three men and women.
Looped events where runners choose how many laps to run on the day, with maps, aid stations every lap and distances from 5K to 50K across several venues.
A 10 km narrative night time trail around Thaxted, self navigated and timed, starting and finishing at The Maypole with proceeds to John Webb's Windmill.
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.
Nuclear Fallout at Nuclear Essex hosts winter muddy obstacle races over 6 km, 12 km or a 24 km endurance format with dozens to hundreds of obstacles across farmland and woodland.
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.