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Nov
1
Sunday

Hertfordshire Half Marathon

Registration

The Hertfordshire Half Marathon will take place in Knebworth on Sunday 1 November 2026. You can run between 10 and 21 miles. Visit the organization's website for the most recent information.

Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
21 mi
Half Marathon 21.1 Miles
10 km
10k

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