Race For Life Chelmsford 2026

Pretty Muddy Chelmsford is a 5k muddy obstacle event held at Hylands Park in Chelmsford, Essex, scheduled for July. Cancer Research UK organizes this as a fundraising event, offering entries for adults and children, with a minimum fundraising goal. The 5k distance covers just over 3 miles; many participants complete it in about an hour, as the focus is on navigating the obstacles at your own speed rather than achieving a fast time. The course is contained within Hylands Park, running on grass with minor inclines and uneven terrain. The start and finish are located on open grass near Flint Cottage. Participants will climb, crawl, and slide through muddy obstacles. Marshals provide assistance around the course, obstacles can be bypassed if necessary, and staggered waves every 15 minutes ensure a steady flow without congestion. A Pretty Muddy Kids Race is also available, making the Chelmsford event suitable for families, charity teams, and novice runners, as well as experienced participants.