The start line is positioned at historical Knebworth House for a dramatic effect, and the half 10k route explores the beautiful gardens of Knebworth Park before leading runners out to the surrounding countryside. The Hertfordshire Half Marathon is a Road closed event which gives runners a rare opportunity to have the roads for themselves, this is unprecedented in this neighbourhood.  So get out there and enjoy it. 

Before securing your place on any event, please see our Fundraising terms and conditions.