Trail Running calendar near Welwyn 2026-2027

We have found 553 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

A 7 hour and 2 minute remembrance run along the River Thames with flexible lap distances from 3 km to ultra distances. Finishers receive a medal and goody bag and a two minute silence will be deducted from official times.

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.

A point-to-point trail half marathon along the Grand Union Canal from Cowley to Watford, featuring chip timing, four water stations, a wooden finisher medal and on-course marshals. A pre-race coach transfer to the start is available by pre-..

A three-day, 84-mile (135 km) ultramarathon along the Ridgeway from Buckinghamshire to Wiltshire, with overnights in Watlington and Didcot. The event offers full and single-day entry options and includes accommodation, meals and checkpoint..

A 50 mile race of five 10 mile loops wholly within Wendover Woods, featuring 10,000 feet of climb, nine well stocked aid stations and marked trails. The event is supported by race medics, has a 15 hour cut off and requires marathon qualific..

Timed multi lap event on the Itchen Way in Winchester on 14 November 2026, with 2.62 mile laps that add up to half marathon, marathon and ultra distances. Flexible start format, aid station with vegan options, bespoke finisher's medal.

Trail races at Westerlands near Graffham: a 50 km Ultra linking five long distance trails and a 13 mile Half on three trails, with SportIdent timing, aid stations, mandatory kit and a wooden eco-medal for finishers.

A multi-terrain *5K* and *10K* race in the Chiltern Hills on 15 November 2026, organised by the Radnage Primary School PTA, with water stations, first aid, a village hall cafe and proceeds supporting the school.

A 7 hour Time Challenge on a signed riverside loop at Wraysbury Skiff and Punting Club, with distances from 3 km to 50 km, themed medals and distance pins, goody bags and aid stations on each lap.

A marathon and a half marathon through the northern Cotswolds on 15 November 2026, starting and finishing in Broadway village. Mostly trail terrain with marked routes, GPX files available, TRA licensed and run under UK Athletics rules.

An off-road walking and running event from Barton-le-Clay Village Hall with route choices of 12 miles walkers only, 18 miles and 26 miles. Online entry is required and route descriptions must be downloaded and printed in advance.

Trail event in the Meon Valley offering 15, 20 and 40 mile options on mostly off road terrain with marked routes and fully stocked checkpoints. Shorter distances allow walkers and on the day swaps between 15 and 20 miles are permitted.

A six-hour lap event at Salcey Forest where participants choose how many 3.5-mile loops to run. Dogs and rucking are allowed, a reduced parking rate is available, and there are options for charity donations or a tree token instead of a meda..

A 10k night trail at Salcey Forest on a marked two lap crushed stone route that can be slippery in wet weather. A head or chest torch is required, Petzl will provide demo kit, and a canicross option runs ten minutes before the main field.

A fully marked trail ultramarathon around Putteridge Bury in the North Chilterns, the 50K features varied ridgeline running, 798 m of ascent, three staffed aid stations and a UTMB World Series index. Entry is limited to 250 runners.

Riverside trail runs from Alexandra Gardens, Windsor with 21.8k and 16.1k routes. The chip timed course features water stations, marked signage, first aid cover and finisher medals and refreshments.

A half-day 10 km trail run around the Chiltern Hills that finishes with a private brewery tour and tasting at Tring Brewery. Groups are split by ability and participants must be able to run 5 km without stopping.

A trail event at Spider Hill featuring a single 10 km lap with marshes, Alligator Swamp, Swan Lake, the Muddy Mile and Duck Pond. A 5 km option uses a shortened version with the same muddy, wet terrain.

A mostly off road 15k trail at Trifarm near Boreham on 21 November 2026, following public footpaths and bridleways. The anticlockwise route starts by the lake and finishes on the running track beside the road entry.

A 14 mile trail run on 22 November 2026 with a climb at the start, downloadable route maps and a GPX file. Basic aid stations are provided and parking is very limited so train or cycle travel is recommended.

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