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Trail Running Calendar near Welwyn 2026-2027

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Explore the top trail runs near Welwyn for 2026-2027! We've gathered 156 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

November 2026
Nuclear Fallout on 7 November 2026 at Nuclear Essex offers 6 km, 12 km and 24 km plus muddy obstacle courses across farmland, woods and lakes.
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.
A scenic 5K in Greenford along the Grand Union Canal with a short Horsenden Hill section, run by a faith-driven club that meets regularly and holds a post run coffee meetup.
A weekly 6K Saturday Social run at Fulham Pier with pace groups and pacers, part of the 445 Crew runs across London.
Join a community of runners at Richmond Park for a series of timed races supporting Movember. Enjoy a hilly tarmac course with distances ranging from a kids mini run to a half marathon in a supportive atmosphere.
Second Sunday 5 on 8 November 2026 at Richardson Evans Memorial Fields, Putney Vale, a relaxed two lap run organised by Thames Hare & Hounds.
Torchlit 5 km charity trail on 11 Nov 2026, supporting Whizz Kidz with a countryside route and a pub finish; places are limited.
LUCA XC Race 2 is scheduled at Wimbledon Common, London on 11 Nov 2026, organised by London Unis and Colleges Athletics with start lists and scores published.
A three day, 84 mile ultra along the Ridgeway from Buckinghamshire to Wiltshire with overnight stops, accommodation options and checkpoint support.
A 50 mile, five loop trail race in Wendover Woods with 10,000 feet of climb, nine aid stations, full medical cover and a 15 hour cutoff.
Lap based timed run along the Grand Union Canal in Harefield on 14 November 2026, using a 3.28 mile lap with distances from 5 km to ultra.
Women only cross country invitational in Richmond Park with a hilly just over 5 km route, clubhouse facilities, and public transport and bike access.
A long-distance LDWA walk on 15 November 2026 from Barton-le-Clay offering 26, 18 and 12 mile routes with entries limited to 250.
A fully marked 50.3 km trail race from Putteridge Bury across the North Chilterns with four checkpoints, aid stations, mandatory kit and a 9 hour time limit.
Half day 6 miles 10 km trail run in the Chiltern Hills with a private Tring Brewery tour, tasting and a bottle or a pint included.
A 10 km road and riverside run starting and finishing at Kingston Hawker Centre, using chip timing and offering a finisher medal, refreshments and baggage drop. The event supports Kingston Hospital Charity and notes nearby train and local parking o..
A timed, lapped Cakeathon at Mowsbury Park on 22 November 2026 offering flexible starts, a flat 5.3 km lap, distances from 5 km to ultra, and a seven hour limit.
Three evening trail time trials in the Chilterns on 23 September, 21 October and 25 November, each on a marked, chip timed course of about 8 km with a head torch required.
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