Trail Running calendar near Welwyn 2026-2027

We have found 428 Trailruns within 80 miles of Welwyn. See below where and when you can find the races.

Trail races over half marathon and marathon distances take place entirely inside Richmond Park, starting and finishing at Sheen Gate. The course passes gates, lakes and wooded sections and includes several drink and feed stations.

The Windsor Trail Run on August 30, 2026, offers a scenic 10k or half marathon through the flat paths of Alexandra Gardens in Windsor. Runners can enjoy views of the castle, chip timing, and free photos.

Take on the Muntjac 15, a 15 mile trail around Danbury Essex with 1600 ft of climbing across scenic woodland and technical singletrack. Enjoy a well stocked checkpoint, a quality memento and bespoke local trophies.

Event Overview The Woldingham Marathon and Half Marathon are trail running events on a single out-and-back course. The half marathon completes the course once, while the full marathon covers it twice. Course Details The route starts at Wold..

September 2026

An evening trail run through Ickworth Park with chip timed 5 km and 10 km courses across limestone paths, meadows and woodland. All finishers receive a medal and water refills are available without single use cups.

Riverside races at Temple Island Meadows in September 2026 featuring a half marathon, 10K and junior event. Mixed undulating courses, chip timing, a themed medal, race photos and post race goodies.

Multi-distance trek and trail event on the South Downs Way on 5 and 6 September 2026, from Eastbourne to Arundel. Routes pass Beachy Head and the Seven Sisters and include rest stops, GPS tracking, medical support and camping options.

UTMB Index

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

A scenic charity trail event on 6 September 2026 from Great Ponton Village Centre near Grantham, with routes on footpaths, bridleways and quiet country roads, and distances from 10 km to 26.4 miles.

A guided *10 km* trail run from Silent Pool near Guildford, using North Downs Way and Netley Heath paths, led by a qualified guide. Group-paced, two 2026 dates, £16 entry and car parking at the meeting point.

A 50km beginner friendly ultramarathon on 12 September 2026, following the Boudicca Way from Diss to Norwich with checkpoints, GPS tracking and a 250 runner limit.

A bi-annual trail series circling scenic Bewl Water reservoir on mixed woodland and country lane terrain. Runners can choose from four distances: 10 km, Half Marathon, Marathon, or an Ultra 50 km. The marathon course is recognised as one of..

A multi-distance towpath challenge from Putney Bridge to Henley, with supported rest stops, medical teams, GPS tracking and options for walkers, faster runners and two-day formats as part of a riverside weekend festival.

UTMB Index

Trail races in Shere, Surrey, with **10k**, **21k** and **42k** routes across the Surrey Hills, chip timing, marked courses, aid stations, an Event Village and free parking. Start and finish at the cricket pavilion.

A marathon in Farnham, Surrey on 13 September 2026 with listed spectacular views. Entry is £45, places are limited to 1000 and entries close on 8 September 2026.

A multi terrain trail race in Rye, East Sussex, offering 30k and 15k routes through the High Weald Area of Outstanding Natural Beauty. The event supports local charities and includes a bespoke medal and free photographs.

A mixed trail 10k and 5k in Slinfold raising funds for local causes, with chip timing, children’s races and refreshments at the cricket club. Adult finishers receive a replica world record medal and age group awards are presented.

A 13.1 mile half marathon in Richmond Park on 13 September 2026, starting at Sheen Gate and following the Tamsin Trail and park roads with water stations and refreshments on route.

Run riverside trails and village lanes at Roman River Trails, a self navigated half and full marathon near Colchester. Expect scenic river crossings, varied terrain, stocked aid stations and a cupless format so bring a cup.

Sandridge 10k is a 10 kilometre trail run around the village of Sandridge near St Albans, starting at Woodcock Hill. Entry is for those aged 16 and over and fees are listed between £21 and £23.