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.
July 2027
Pretty Muddy 5k at Hylands Park Chelmsford on 18 July 2027 is a grass obstacle course with climb crawl and slide elements, staggered wave starts and a minimum age of 13.
Summer 10K at Highfield Park St Albans on 18 July 2027 with a flat, traffic-free route along the Alban Way and a family-friendly event village.
August 2027
Experience a recreation focused obstacle event in Chelmsford featuring multiple distance options and up to 90 giant inflatable obstacles for participants of all abilities.
September 2027
Mud Tribe in Brentwood offers muddy obstacle courses of 1.5 km and 5 km with foam and water features, hot wash downs, a finisher medal and family friendly facilities.
An 81 mile circular ultra on the historic Bunyan Trail in Bedfordshire with official waymarking, seven aid stations, live tracking and a 24 hour completion limit.
A multi-distance Thames Path event from Putney Bridge to Henley with rest stops, GPS tracking, camping options and on-course medical and catering support.
October 2027
A 100K trail ultramarathon from Chesham around the Chiltern Hills, fully marked with six checkpoints, GPS tracking and a 19 hour time allowance.