The Abbots Langley Tough Ten is a hilly 10K race held annually at Manor House Grounds in Hertfordshire, with its origins in 1982. It began as a 10-mile event, transitioning to the 10K distance some years ago. The event also offers 5K, 3K, and a 1K Fun Run, catering to various ages and skill levels.
Participants navigate a course that begins and ends on grass, primarily utilizing tarmac roads through the tranquil lanes of Abbots Langley, Bedmond, and Kings Langley. A sharp incline in the last kilometer defines the race's character. This event functions as a registered charity, generating support for local clubs, schools, and individual causes.