Hertfordshire Half Marathon 2026
Old Knebworth Ln, Knebworth, UK | Sunday, 1st November, 2026
The start line is positioned at historical Knebworth House for a dramatic effect, and the half marathon 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.
Knebworth House is a grade II listed house set in acres of beautiful gardens and parkland. Knebworth House has welcomed many music artists for major open-air concerts, including Robbie Williams, Oasis, Led Zepellin and Red Hot Chilli Peppers. The grounds are home to popular tourist attractions including an adventure playground and dinosaur trail.
When you join Team Grassroots, you will benefit from:
- No joining fee to register.
- Free Branded Vest, so you can proudly represent people affected by suicide whilst training.
- Our Fundraising Hub, which includes a range of tips, inspirational ideas, and advice.
- Press release templates
- Social media templates
- Regular check ins, and progress updates.
- Access to a strong online social community of Team Grassroots Members like yourself.
- Access to a free mental health and suicide prevention training session.
Charity Place Fundraising Target: £350
Registration Fee: £0