Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 125 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A functional fitness race in Bedford on 30 August 2026 combining ten Xercises with repeated runs in solo, doubles or relay formats, with standard and LITE weight divisions.
September 2026
Three starting points converge on the Klättermusen London store for a point-to-point run across the city with 25 km, 10 km and 5 km options.
A muddy obstacle-course run in Brentwood with 5 km and 1.5 km options, achievable obstacles, finisher medals and post-race wash-downs.
A women only muddy obstacle course in Brentwood, Essex covering 5 km with varied obstacles, wash facilities, a finisher medal and an inclusive, non competitive format.
An ultra endurance event in Heartwood Forest where participants cover four mile loops within a 12 hour window, solo or in relays up to eight people. Winners are decided by distance and all finishers receive a medal.
A community 10 km road race in Takeley held each September, with a 1 mile children's fun run, chip timing, medals and technical shirts.
A multi-distance walk, jog and run along the River Thames from Putney Bridge to Henley in September 2026 and 2027. Distances span 10 km to 100 km with rest stops, catering, medical support and GPS tracking via an event app.
A series of fully marked, fully supported trail and ultra events in the UK that focus on a welcoming, inclusive atmosphere with generous cut-offs and runnable countryside courses.
An 81 mile ultra on the John Bunyan Trail in Bedfordshire, run as a single loop to be completed within 24 hours with 1,219 metres of ascent and seven aid stations.
Phoenix Running Bedfordshire's Pick n Mix on 12 September 2026 uses a 5.3 km lapped course at Mowsbury Park. Runners choose distances from 5 km up to ultra with a flexible one hour start window and a seven hour time limit.
A 10 km trail race in Sandridge, St Albans on 13 September 2026, starting and finishing at Sandridge Primary School playing field. Organizers publish route information and FAQs, and the event is supported by Sandridge Parish Council.
A lapped 7 hour trail event on a 5K loop in Hitchin with a Mini Mile and virtual option, event village, aid station and post event massage.
A roughly 170 mile nonstop loop of London with strict checkpoint cutoffs, minimal support, and limited entry of 25 to 30 places.
Team cross country relays at Chingford Plain on 19 Sep 2026 with junior, senior and veteran races, limited entries and specific England Athletics eligibility and team rules.
A marathon and half marathon along the scenic Ouse Valley Way in Huntingdonshire, with mixed surfaces, minimal elevation and England Athletics insurance.
A timed lap event in Crystal Palace Park where runners complete 2.65 km laps within a seven hour limit, choosing distances from 5 km to ultra. The off road course mixes tarmac and gravel and all participants receive a bespoke finishers medal.
A five mile trail run on 24 September 2026 at The Viper in Mill Green near Ingatestone. Limited to over 18s with a small field; participants must be self sufficient with phone and headtorch and a tail runner is on course.