Trail Running calendar near Welwyn 2026-2027

We have found 554 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

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 night trail 10k at Salcey Forest requiring a head or chest torch, with Petzl demo torches on site. Two laps on crushed stone, a canicross start option and evening parking charge apply.

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.

Enjoy a guided 10km trail run through the scenic Chiltern Hills followed by a private tour and tasting at Tring Brewery. This social event includes professional trail instruction and is open to runners of all abilities.

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.

A Half Marathon and a 10k on Wimbledon Common in London supporting Beder, with a trail marked course, course marshals and an event village offering food, drink and partner goodies.

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..

Guided 10 km trail run around the Devil's Punchbowl in Hindhead, Surrey. Runs take place at dusk in summer and at night with headtorches in winter, on hilly trails with group pacing and a recommended average pace of about 10 min per mile.

A flat, fast trail run through the Suffolk AONB from Wantisden Hall offering three waymarked distances—9 km, 16 km and 23 km—with outposts on the longer routes and on-site facilities including free parking and timing.

Trail run from Plumpton Racecourse into the South Downs National Park offering three distances, climbs to the South Downs Way with Seven Sisters and sea views, and a flat final 3 km to the finish.

A riverside marathon and half marathon along the River Thames on an accurately measured UKA certified course. Multiple laps on a flat towpath route with medals for all finishers and virtual entries.

A six hour lap event at Suffolk Running Centre on 28 November 2026 using a 10.5 km road and trail loop. Runners can complete multiple laps to reach distances from 5k to ultra and will receive a bespoke event medal.

Guided 30 mile trail run from Haslemere along the Serpent Trail and Sussex Border Path with varied heathland, woodland and views of the South Downs. Group based pace and advised prior training of 22 miles; cost £45.

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