Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 127 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
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 trail event along the Thames towpath from Putney Bridge to Henley with options from 10K to 100K, supported rest stops, GPS tracking, camping and finishers' kit.
A UK trail and ultra series offering fully marked, fully supported races with generous cut-offs and runnable countryside courses.
An 81 mile, 24 hour ultra on the John Bunyan Trail through Bedfordshire with seven aid stations, live tracking and guided recce weekends.
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.
10 km trail race around Sandridge (St Albans) on 13 September 2026, starting at Woodcock Hill with an entry fee of £25.
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.
Three evening trail time trials in the Chilterns on 23 Sept, 21 Oct and 25 Nov 2026 with marked courses and chip timing.
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.
A Backyard Ultra in Welwyn Garden City where runners repeat a 4.167 mile loop each hour until one remains; entry includes drink vouchers and a commemorative pint glass.
Rural chip timed 10k and 3k near Grantchester supporting Maggie’s and Addenbrooke’s Charitable Trust with medals, trophies and on site health services.
Timed multi lap event at Regatta Meadow in St Neots on a 5.3 km out and back course, offering distances from 5 km to ultra. Participants decide how many laps to run and all receive a finishers' medal.
October 2026
A 50 km Epping Forest event in London on 03 October 2026, listed as part of Camino Ultra’s 2026 events.