Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 129 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
March 2027
Trail half marathon in the Chiltern Hills covering 13 miles with 300 m ascent, led groups, a midway refreshment point and a finisher’s medal.
A lap trail event at Hyde Hall Farm offering 10k, half, full and ultra options on a 5.4 km mostly off road circuit with aid station, parking and finisher medals.
A 17.5 miles clockwise boundary trail race around Ashridge Estate, starting and finishing at Aldbury Recreation Ground, with water, a finisher gift and prizes.
April 2027
Experience a unique night run at Hyde Hall Farm with 6 or 12 hour challenge options on a 5.4 km loop through the Hertfordshire countryside.
A guided 42.2 km trail run through the Chiltern Hills with qualified Run Leaders, checkpoints, mandatory trail shoes and a wooden finisher's medal.
An untimed inflatable obstacle event in St Albans on a 2.5 km lap with distances from 2.5K to 15K, medals, music zones, and on-site facilities.
May 2027
A 100 miles point to point trail race from Richmond to Oxford along the Thames Path with marked route, at least twelve aid stations and a 30 hour cut off.
Nuclear Rush is a muddy obstacle race in Brentwood, Essex, with courses from 1.5 km to 12 km and signature features like the Deathslide and multi lane zip wires.
A guided 30 km trail run through the Chiltern Hills with technique instruction, checkpoints, refreshments and a finisher's medal near Tring Station.
Experience London's energetic Hackney Moves Festival featuring a half marathon on closed roads, a sunset 10K, and a community festival at Hackney Marshes.
Trail races of 10 mile and 5 mile at Cammas Hall Farm, Essex on 16 May 2027 with chip timing, water stations and finisher t-shirt and medal.
Track event on a 400 metre athletics track offering distances from 5k to 50k plus a six hour challenge at Wodson Park, limited to 100 entrants.
Four-day Zodiac themed lap based running event at Old Warden with 5.3 km laps, distances from 5 km to ultra, a seven hour timed format and a 75 runner limit.
A supported trail challenge from Richmond to Brighton offering distances from 10 km to 100 km with rest stops, GPS tracking, camping, and on route medical support.
Endurance weekend at Hyde Hall Farm on a 5.3 km loop, offering a 100 mile option and multiple timed challenges including 24 hour, 12 hour and 6 hour formats.