Hertfordshire Half Marathon & 10K November 2021

Nov 07, 2021


SKU: HertsNOV2021 Category:
36% event capacity filled
Entry Limit: 3000

Event Details:

Sunday | November 07, 2021
07/11/2021 9:00 am - 07/11/2021 12:00 pm
Knebworth House

Online entries have now closed

Entries on the day still available

Join us for the return of the Hertfordshire Half Marathon & 10k on Sunday 7th November 2021!

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.

Get a group of your friends and family together and make savings on your entry fees. Price works out at £23.33 per person. You will be emailed your code within 14 days of payment. If you do not receive this, please email [email protected]

Start Times: 

Half Marathon – 9:00am

10k – 9:30am


(Previous medal design below)

Knebworth House is a grade II listed house set in acres of beautiful gardens and parkland. Knebworth House has welcomed many music artists for major open air concerts, including Robbie Williams, Oasis, Led Zepellin and Red Hot Chilli Peppers. The grounds are home to popular tourist attractions including an adventure playground and dinosaur trail.

Included in the entry is a themed medal, t-shirt, refreshments and much more!

Here at RunThrough we are always looking for likeminded people to join our community. We always value an extra pair of hands and would love for you to come along and help us! From managing stalls at the event village to handing out medals at the finish, our volunteers are a critical part of what make RunThrough events so special! If you fancy volunteering with us as a volunteer at his event or any of our other events please click HERE


ACTIPH Water is the UK’s first alkaline ionised bottled water. Through a unique ionisation process, purified water and a blend of electrolytes are supercharged to create a smooth and clean tasting alkaline water with a pH of 9.0+.

Grab your bottle of ACTIPH at the finish line!!

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enjoy after your race! To enjoy the great taste of Athletic at home with 20% off, using code RUNTHROUGH20 at uk.athleticbrewing.com.
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  • By Car

    Knebworth House & Park are accessed direct from the Junction 7 roundabout of the A1(M) motorway at Stevenage South, 29 miles north of London. There are signs on both carriageways of the motorway. Plenty of free parking. If you are using a Sat Nav system use the post code of the Stevenage Novotel at Junction 7 – SG1 2AX – not the Knebworth House post code.

    By Rail

    The nearest rail station is Stevenage, two miles Knebworth Park. There is a taxi rank at the station. Non-stop Inter-City and local services run to Stevenage station from London’s Kings Cross station around every 30 minutes. There are also frequent Inter-City connections on the East Coast main line from Cambridge, York, Leeds, Newcastle, Edinburgh and Glasgow. Rail information.
    Start Times:
    Half Marathon - 9:00am
    10k - 9:30am

    All race packs will be posted out to entrants to arrive in the week of the event.

    The Course

    There will be mile markers, arrows and marshals along the course to keep you on track. There will be three water stations at miles 3.5, 7.5 & 10 as well as at the finish.