Hertfordshire Half Marathon & 10K
This popular road closed half marathon starts and finishes in front of the iconic Knebworth House with the course taking participants around the beautiful surrounding rural roads.
| Date | Sunday 2nd November, 2025 |
|---|---|
| Distance | Half Marathon + other events: 10K |
| Location | Old Knebworth Lane |
| Town/City | Knebworth |
| Area | Buckinghamshire, Bedfordshire & Hertfordshire |
| Start postcode | SG1 2AX |
| Start time | 9:00am |
| Organiser | Lucy Harfield |
| Website | Visit website |
| Run For Charity |  Start Fundraising On GoFundMe |
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.
