Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 139 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
July 2027
A summer 10K in Highfield Park, St Albans with a free family fun run, event village and chip timed results on 18 July 2027.
Trail races from 8 km to 50 km around the Chiltern Hills, based at Princes Risborough with varied terrain, marked courses and outposts on longer routes.
August 2027
An inflatable obstacle run at Hylands Park on 7 August 2027 offering lap based distances from 2.5 km to 15 km with music zones and finisher medals.
A riverside race series from Small Profit Dock Gardens in Barnes using flat out and back routes on the Thames Path with 10 km, half and full marathon options.
September 2027
Muddy obstacle runs in Brentwood, Essex offering 1.5 km and 5 km courses, achievable obstacles, hot wash downs and a finisher medal.
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.
Multi-distance Thames Path event on 11/12 Sept 2027 with supported rest stops, GPS tracking, camping and finishers kit.
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.
Volunteer-run 10k and 3k through farmland near Grantchester supporting Maggie’s Centre Cambridge and Addenbrooke’s Charitable Trust, with chip timing and medals for finishers.
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.
Trail runs in Epping Forest on 9 October 2027 offering 10K and half marathon routes through ancient woodland with chip timing and aid stations.
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.
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.