The Hertfordshire Half Marathon on 1 November 2026 starts and finishes in front of the iconic Knebworth House in Stevenage.
The route takes in the grounds of Knebworth Park before heading out to the surrounding country lanes.
This road closed course gives runners the opportunity to enjoy the rural roads totally traffic free.
10K
Half Marathon
The event starts/finishes in front of Knebworth House. Refer to the event website for course maps.
Please note: the map location may be approximate. Refer to the event website for start lines and course maps.
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This listing was last manually checked on 6 November 2025.
