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Race Guide
Hertfordshire 10k

Date / Time

Length

6.21 miles (10.0 km)

Description

Join us for the Hertfordshire Half Marathon & 10K on Sunday 1st November 2026

The Hertfordshire Half Marathon & 10K returns for 2026, and registration is now OPEN! Taking place on Sunday 1st November, this exciting event is set in beautiful Old Knebworth, offering runners of all abilities a memorable race experience.

Both races feature undulating, scenic road routes through the picturesque Hertfordshire countryside. Whether you're tackling the Half Marathon or the 10K, you'll enjoy a welcoming race-day atmosphere, excellent support from marshals, and clear route markings. It's the perfect autumn challenge for seasoned runners aiming for a new PB or first-timers stepping up their distance.

Book your spot now at our Early Bird Prices!

Race Distances & Start Times

09:00 am - Half Marathon start

Distances: 21.1m

Cut-off: 3 Hours (12:00)

09: 30 am - 10k start

Elevation: 92m, Road (undulating)

Cut-off: 1.5 Hours (11:00)

Included in the entry

Unique Themed Medal

Chip Timed Results

Post-race goodies

Free Race Photos

Type of Race

Road

Venue

Old Knebworth Ln, Knebworth, UK

	Show Location Map

Entry Fee

In Advance : £30.00 (affiliated) £

On the Day : £30.00 (affiliated) £

How to Enter

Click this button to enter the race online: Enter This Race

Race Website

www.runthrough.co.uk/event/hertfordshire-half-marathon-10k-november-2026

Contact for Enquiries

Race Calculators

Finish Time Predictor

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