Sun 2 Nov 2025
Stevenage, Hertfordshire, UK
Hertfordshire Half Marathon and 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.
2 races
Event overview
Starting and finishing in front of the iconic Knebworth House, the route takes in the grounds of Knebworth Park before heading out to the surrounding country lanes. This ROAD CLOSED course gives you the opportunity to enjoy the rural roads totally traffic free – this is the first mass participation event with closed roads staged at Knebworth House!
Event details
- All fitness levels
- Event village
- Newcomers
Location
- Bag storage
- Free parking
- Music
- Park
- Rural
Sustainability
- Recycling
- Sustainability policy
Races at event
- Sun 2 Nov
- #1 of 2
Knebworth House, Stevenage
10K
09:30
Age 15 & over
£36-£48
- 10 km road running + 92 m ascent
- Sun 2 Nov
- #2 of 2
Knebworth House, Stevenage
Half Marathon
09:00
Age 17 & over
£42-£54
- 13.1 miles road running + 218 m ascent