Hertfordshire Half Marathon

NOV
1
2026
A road running event at Old Knebworth Ln on 1 November 2026 offering a half marathon and 10K on undulating courses, with chip timing, medals and post-race photos. The event supports Garden House Hospice Care.
Sun 1 Nov 2026
21 miles 10 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Hertfordshire Half Marathon & 10K - November 2026

The event takes place on Sunday 1 November 2026 at Old Knebworth Ln, Knebworth, UK. Two road race distances are offered:

  • 10K
  • Half Marathon (21.1m)

Both courses are road-based and described as undulating through the Hertfordshire countryside. The published elevation gain is 218 m for the half marathon and 92 m for the 10K. Each kilometre is marked with distance flags and marshals will guide and support participants along the route.

Entries include a unique themed medal, chip-timed results, post-race goodies and free race photos. There is a race village with food and drink options and additional freebies provided by event partners. A discounted event t-shirt with the event logo is available as part of entry purchases.

The event lists cut-offs of 3 hours for the half marathon and 1.5 hours for the 10K. Entry prices published for this edition include £38 for the 10K and £45 for the half marathon. The event supports Garden House Hospice Care, which provides free specialist palliative care for patients, families and carers across North Hertfordshire, Stevenage and parts of Central Bedfordshire and Cambridgeshire.

Additional event information covers route maps, logistics, spectator details and sustainability measures. Visit the organization's website for the most recent information.

21 mi
Half Marathon
10 km
10k